TW201247585A - Glass substrate for liquid crystal lens - Google Patents

Abstract

This invention relates to a glass substrate which is for liquid crystal lens and has a glass composition (by mole%), including 45% to 75% of SiO2, 5% to 15% of Al2O3, 0% to 15% of B2O3, 0% to 15% of MgO, and 0% to 15% of CaO, and has a thickness equal to or less than 400 μ m.

Description

201247585 42467pif VI. [Technical Field] The present invention relates to a liquid crystal mirror glass substrate which can be applied to a viewing area control unit of a two-C three-dimensiona 3D display. <Day 0 Transparency [Prior Art] In recent years, 3D display without glasses has begun to appear on the market. . Device. As a display method of 3D that does not require glasses, a Parallel Barrier type and a method of using a lens have been proposed.葙 Two differences are a way of covering the display by a stripe-shaped barrier set to an appropriate interval to form a binocular parallax. Recently, there has also been a type of = to create a barrier that can be switched between 2 D 贞 3 D. The = type has to use the - face barrier to hide at least the inside - part of the 'there is a problem of brightness degradation of the display. The basic principle of the enemy's way of using the lens is similar to f, which replaces the barrier by the plastic film (the method of parallax. In this way, the brightness of the two holding displays is formed because the gold surface is not covered, but there is a cover method In the field of Yiwei, Green's, and the field of view control to switch between 2D and 3D are studying the use of liquid crystal lenses for light film and conduction: the presence of alignment plates in the formation of partial crystals The liquid crystal is applied between the liquid crystals, so that the liquid can perform the stereoscopic observation and the seeding effect, so that the μ method does not cover the halogen as in the parallax barrier type 201247585 42467pif, and can also be performed between 2D and 3D. Switching is expected as a field of view control mechanism for a next-generation 3D display. However, in a method of performing viewing area control using a liquid crystal lens, in the case where a liquid crystal lens is disposed on a pixel of a display device, there is a flaw. The distance between the prime and the lens becomes longer, and the viewing angle of 3D becomes narrower. This problem is caused by the following conditions: liquid crystal display (LCD) or organic light emission. In the display portion of the 〇rganic Light-Emitting Diode (OLED), the glass substrate of 0. 5 mm to 0.7 mm is present on the front side, and the thickness of the glass substrate to which the liquid crystal lens is added is added. On the other hand, if the liquid crystal lens is reduced When the thickness of the glass substrate is used, the above problem can be improved. However, when the thickness of the glass substrate is reduced, the valley is easily deflected. If the glass substrate is deflected, it is impossible to perform the desired effect on the surface of the glass. The problem of film formation (for example, film formation of a transparent conductive film, etc.) [Technical Problem] Therefore, a technical object of the present invention is to provide a halogen substrate by providing a glass substrate which is less likely to be deflected even if the thickness is reduced. The field of view control unit of the 3D display having a short distance between the lenses and having a suitable transparent conductive film. The inventors of the present invention have repeatedly conducted various experiments and found that the glass composition and size of the glass substrate can be strictly limited. The present invention has been made in view of the above technical problem. That is, the glass substrate for a liquid crystal lens of the present invention is characterized in that it is a glass composition and is expressed in mol%. Containing 45%~75% of SiO2, 5%~15% of Al2〇3, 〇〇/0~15% of B2〇3, 0%~15% of MgO, and 〇%~15% of CaO, and the plate The thickness is 201247585 42467pif 400 μηι or less. If the glass composition is limited as described above, the devitrification resistance and the specific Young's modulus can be improved. If the devitrification resistance is high, the thickness is easily formed into a plate thickness. When the thickness is less than 400 μm, the glass substrate is less likely to be deflected even when the thickness is 400 μm or less. Further, if the glass composition is limited as described above, the density and high temperature viscosity can be lowered. Sex. Further, if the thickness of the glass substrate is limited to 4 Å or less as described above, the viewing angle which can be stereoscopically viewed in the 3D display can be expanded. Further, the glass substrate can be made flexible, and the glass substrate can be formed into a roll. When the glass-correcting substrate is in the state of a glass roll, the transparent conductive slab or the polarizing film can be continuously applied, and the production efficiency of the liquid crystal lens is drastically improved. Second, the glass substrate for a liquid crystal lens of the present invention preferably has a specific Young's modulus of f GPa/(gW) or more. Here, "Bian Young's modulus" is a value obtained by dividing the Young's modulus by the value of ^. The "Young's modulus" is a value measured by a known resonance method or the like. "Density" can be measured by knowing the knowledge. @ Third, the glass substrate for a liquid crystal lens of the present invention preferably has a strain point of 650 ° C or higher. Here, the "strain point" means a value measured in accordance with ASTM C336. The fourth liquid crystal transparent glass substrate of the present invention preferably has a density of 27 g/cm3 or less. The glass substrate for liquid crystal lens of the fifth invention is preferably 1650X: or less at a temperature of 10〇25dpa 201247585 42467pif • s. Here, "the temperature at 10 Pa25 dPa · s" corresponds to the melting temperature, and is a value measured by a uranium ball pulling method. Sixth, the glass substrate for a liquid crystal lens of the present invention preferably has a liquidus viscosity of 104 GdPa · s or more. Here, "liquid phase viscosity" means a value obtained by measuring the viscosity of glass at a liquidus temperature by a platinum ball pulling method. "Liquid phase temperature" means that the glass powder remaining in the 5 mesh (3 〇〇μπι) through a standard sieve of 30 mesh (500 μηι) is added to the boat, and the boat is kept in a temperature gradient furnace for 24 hours. The value obtained by measuring the temperature at which crystals are precipitated. The glass substrate for a liquid crystal lens of the present invention preferably has a thermal expansion coefficient of 3 0 X10_7/°C to 5 0 X1 〇-Vc at a temperature of 380 °C. Here, the "thermal expansion coefficient" is a value measured by a dilatometer, and means an average value in a temperature range of 30 ° C to 380 ° C. Eighth, the glass substrate for liquid crystal lenses of the present invention is preferably formed by an overflow down-draw method. Here, the "overflow down-draw method" is also referred to as a melting method, and the molten glass is caused to overflow from both sides of the heat-resistant groove-like structure, and the molten glass that has overflowed is merged at the lower end of the groove-like structure. The lower side is stretched and formed into a glass substrate. Ninth, the glass substrate for liquid crystal lenses of the present invention is characterized in that, as a glass composition, 45% to 75% of SiO 2 , 5% to 15% of Al 2 〇 3, and 0% to 15% are contained in terms of mol%. B2〇3, 〇%~15% of MgO, and 0%~15% of CaO, molar ratio MgO/CaO is 0~1.5, and molar ratio (SrO+BaO) / (MgO+CaO) is 〇~1 , Mohr ratio Mg0 / Al203 is 0 ~ Bu Mo Er ratio CaO / Al203 is 〇 ~ 3, Mo Er ratio B203 / Si02 is 0 ~ 0.3, substantially does not contain alkali metal oxides (Li20, Na20, K20),

6 S 201247585 42467pif AS2C>3, 3Sb2〇3, pb〇 and Bi2〇, the ratio of Young's modulus is 29 GPa/(g/cm3) or more, 3 (rc~38 (the thermal expansion coefficient of rc is 3〇χ1〇) _7/Χ: ~5〇\1〇7/(3' density is 26§/(:1113 or less, liquid viscosity is 1〇50 ga·s or more, width size is 500 mm or more, and length dimension is 5〇) 〇mm or more, the sheet thickness is gamma ηα or less. Here, "SrO+BaO" means the sum of SrO and Ba0. "MgO+CaO" means the sum of MgO and CaO. "Substantially does not contain ~" The case where the content of the target component in the glass composition is less than 0.1% by mole. For example, "substantially no inclusion of As203" means a case where the content of As2〇3 in the glass composition is less than 0.1% by mole. The glass substrate for liquid crystal lens of the present invention is characterized in that it contains 45% to 75% of SiO 2 , 5% to 15% of Al 2 〇 3 , 〇 % to 15% of BA as a glass composition. 〇%~15% of Mg〇 and 〇%~15% of CaO, Moh ratio of MgO/CaO is 〇~1.5, Moer ratio (SrO+BaO) / (MgO+CaO) is 0~1, Moer The ratio of Mg〇/Al203 is 0 to Bumor ratio Ca0/Al2〇3 〇~3, Moer than B2〇3/Si〇2 is 0~0.3', which does not contain metal oxide, 八82〇3, 2〇3, 卩|3〇, and Bi2〇3' The modulus is 29 GPa/(g/cm3) or more, and the coefficient of thermal expansion at 3〇〇c~380°C is 3〇xlO_7/°C~5〇xl〇-7/°c, and the density is 2.6 g/cm3. In the following, the liquid crystal lens of the present invention includes a glass substrate for any of the liquid crystal lenses described above. The liquid crystal lens of the present invention is characterized in that it has a thickness of 4 Å or less. The glass substrate of the present invention is characterized in that the thickness of the glass substrate is 4 μm or less and the Young's modulus is 29 GPa/(g/cm 3 ) or more. Further, 201247585 42467pif The glass substrate of the present invention is particularly suitable for use in Though it is used for a liquid crystal lens, it can be applied to a substrate of an organic electroluminescence (EL) display other than a liquid crystal lens, etc. The thirteenth, the glass substrate of the present invention is preferably used for a liquid crystal lens. [Effect of the Invention] According to the above invention, it is possible to provide a glass substrate which is less likely to be deflected even if the thickness is small. In the glass substrate, the viewing area control unit of the 3D display having a short distance between the lenses and the lens and having a suitable transparent conductive film can be manufactured. [Embodiment] The glass substrate for a liquid crystal lens according to the embodiment of the present invention is composed of glass. In terms of mol%, it contains 45% to 75% of SiO 2 , 5% to 15% of A1203, 〇% to 15% of B203, 〇% to 15% of MgO, and 0% to 15% of CaO. The reason for limiting the content range of each component as described above is shown below.

The content of SiO 2 is from 45% to 75%, preferably from 50% to 73%, more preferably from 55% to 72%, still more preferably from 60% to 70%. If the content of SiO 2 is too late, it is difficult to achieve a low density. On the other hand, when the content of Si〇2 is too large, the high-temperature viscosity is undesirably high, and the smelting property is lowered. In addition, defects such as devitrified crystals (cristobalite) are likely to occur in the glass.

The content of Al2〇3 is 5% to 15%. If the content of ai2〇3 is too small, it is difficult to increase the Young's modulus or heat resistance, and the high-temperature viscosity will be undesirably high, and the blooming property is liable to be lowered. Therefore, the preferred lower limit range of 'Al2〇3' is 7 Å/〇 or more, 9% or more, 10% or more, η% or more, and particularly preferably 12% or more. On the other hand, if the content of Al2〇3 is too large, the liquidus temperature becomes high and resistance to devitrification

S 8 201247585 42467pif sex is easy to reduce. Therefore, the preferred upper limit of Ai2〇3 is 145% or less, 14% or less, 13,5% or less, and particularly preferably 13% or less. B2〇3 acts as a flux and is a component that lowers high-temperature viscosity and improves meltability. The content of 4〇3 is 0% to 15%. When the content of b2〇3 is too large, the Young's modulus is lowered, and it is difficult to increase the specific Young's modulus, and heat resistance or weather resistance is liable to lower. Therefore, the preferred upper limit of B2〇3 is 11% or less, 8% or less, 5% or less, 3% or less, or 1% or less, and particularly preferably 0.5% or less. Further, when the content of Β2〇3 is small, there is a tendency that the high-temperature viscosity is increased and the bubble quality is lowered, and the density tends to increase.

The content of MgO is 〇%~lsycMgO is a component as follows. That is, MgO is a component which does not lower the strain point and lowers the high temperature viscosity and improves the meltability. Further, MgO is the most effective component for reducing density in alkaline earth metal oxides. Further, it is a component having a large effect of increasing the Young's modulus. However, if the content of MgO is too large, the liquidus temperature rises and the devitrification resistance is liable to lower. Therefore, the preferred upper limit range of 'MgO is 12% or less and 1% or less, and particularly preferably 9% or less. The preferred lower limit of MgO is 1% or more, 1.5% or more, 3% or more, and 3.5% or more. 4% or more, 6% or more, and particularly preferably 7.5% or more.

The cerium content of CaO is 0% to 15%. CaO is a component which does not lower the strain point and lowers the viscosity to the temperature and significantly improves the meltability. Further, in the case of the soil-based metal oxide, if the content of CaO is relatively increased, the glass tends to be lowered. However, if the content of the right CaO is too large, the coefficient of thermal expansion or density will be undesirably high, and the balance of the composition of the glass composition is destroyed, so that the devitrification resistance is liable to lower. Therefore, the preferred upper limit of CaO is 201247585 42467pif 13% or less, 12% or less, 11% or less, 1% 5% or less, 9% or less, and particularly preferably 8% or less. Further, a preferred lower limit range of 'CaO is 1% or more, 3% or more, 4% or more, 5% or more, and particularly preferably 55% or more. In addition to the above components, for example, the following components may be added.

SrO is a component which does not lower the strain point and lowers the high temperature viscosity and improves the meltability. However, if the content of SrO is increased, the density or the coefficient of thermal expansion tends to increase. Further, when the content of SrO is increased, in order to match the coefficient of thermal expansion of si, it is necessary to relatively reduce the content of CaO or MgO. Further, when the content of CaO or MgO is lowered, the devitrification resistance is likely to be lowered, or the Young's modulus is lowered, and the high-temperature viscosity is increased. Therefore, the content of SrO is preferably 〇%~, 〇%~, 〇%~, 〇%~1.8%, 0%~1.4%, 〇〇/〇~1%, and particularly preferably 〇%~〇 5%.

BaO is a component which does not lower the strain point, lowers the high temperature viscosity and improves the meltability, or improves the resistance to devitrification. If the content of BaO is increased, the male, degree or thermal expansion coefficient tends to increase. Further, when the content of BaO is increased, in order to match the coefficient of thermal expansion of Si, it is necessary to relatively reduce the content of ca〇 or MgO. As a result, the devitrification resistance is lowered, or the Young's modulus is lowered, and the high temperature viscosity is increased. Therefore, the content of BaO is preferably from 0% to 10%. A preferred upper limit of BaO is 8% or less, 6 Å/0 or less, 5% or less, and particularly preferably 3% or less. Further, a preferred lower limit of BaO is 0.5% or more, 1% or more, 1.5% or more, and particularly preferably 2% or more. The molar ratio MgO/CaO is preferably 〇~1.5. If the value is larger, the % modulus is increased and the south temperature viscosity tends to decrease, and if the value is too large, the glass is more likely to devitrify. Therefore, the preferred upper limit of the molar ratio MgO/CaO is 201247585 42467pif, and the preferred lower limit range is 0.2 or more, 0.4 or more, 0.6 or more, 0.8 or more, and particularly preferably 1 or more. The molar ratio (SrO+Ba〇) / (MgO+CaO) is preferably 〇~;1. If the value is larger, the devitrification resistance tends to be improved, and if the value is too large, the high-temperature viscosity, the density, the thermal expansion coefficient become too high, or the Young's modulus is lowered. Therefore, the preferable upper limit range of the molar ratio (SrO+BaO) / (MgO+CaO) is 0.8 or less, 0.6 or less, 〇·5 or less, 〇, 45 or less, 0.4 or less, and particularly preferably 〇.35 or less. Further, a preferred lower limit range of the molar ratio (Sr〇+BaC):)/(MgO+CaO) is 〇.5 or more, 〇1% or more, 0.15 or more, 0.2 or more, or 0.25 or more, and particularly preferably 〇. 3 or more. The molar ratio MgO/Al2〇3 is preferably 〇~〗. When the value is larger, the Young's modulus becomes higher and the high-temperature viscosity tends to decrease. If the value is too large, the devitrification resistance is lowered, or the density or the thermal expansion coefficient is excessively high. Therefore, the preferred upper limit range of the molar ratio MgO/Al2〇3 is 〇9 or less, 〇8 or less, 0.75 or less, and particularly preferably 〇.7 or less, and the lower limit range of the molar ratio Mg0/Al203 1 is 0.2 or more, 〇·3 or more, and particularly preferably 〇$ or more, the molar ratio of CaO/Al2〇3 is preferably 〇3. If the value is larger, the modulus is increased and the temperature is lowered, and if the value is too large, the viscosity is extremely high, and the traitor or heat is too high. The preferred upper limit range of Mo7 CaO/AhO3 is 2 or less, 丨5 is ii, and particularly preferably 0.6 or less. The preferred lower limit range is 〇1 or more and 0.2 or more, G.3 or more, 〇.4 or more. , especially good for q $ above. Ht = 2CVSiQ2 is preferably G to G.3. The larger the value, the lower the i-core viscosity, the lower the hiding property or the lower the density or the lower the liquidus temperature (201247585 42467pif tendency. However, if the value is too large, the strain point and Young's modulus are easy to decrease. Therefore, Mobi B203 A preferred upper limit of /Si02 is 0.25 or less, 0.2 or less, 0.15 or less, and particularly preferably 0.1 or less.

MgO + CaO + SrO + BaO is a component which lowers the liquidus temperature and which does not easily generate crystal foreign matter in the glass, and is a component which improves meltability or formability. The content of MgO+CaO+SrO+BaO is preferably 〇%~25%, 3%~20〇/〇, 5%~19%, 10%~19%, 12%~19%, 12.5%~19%, Especially good is 14%~19%. When the content of MgO+CaO+SrO+BaO is too small, the function as a flux cannot be sufficiently exhibited, the meltability is liable to lower, and the thermal expansion coefficient is too low, so that it is difficult to match the thermal expansion coefficient of Si. On the other hand, when the content of MgO+CaO+SrO+BaO is too large, the density is increased, and it is difficult to achieve a low density, and the Young's modulus is liable to lower, and the thermal expansion coefficient is not increased. Further, "MgO+CaO+SrO+BaO" is a combination of MgO, CaO, SrO, and BaO. A clarifying agent is a component used to improve the quality of bubbles. Previously, as a clarifying agent, AsW3, Sb2〇3 was used. However, As203 and Sb203 are substances that cause a load on the environment. From the viewpoint of the environment, it is desirable to reduce the amount of use of these components. Therefore, if Sn02 is used as the clarifying agent, the bubble quality can be improved regardless of the environmental requirements. Sn02 is a component which exerts a good clarifying action in a high temperature range, and is a component which lowers high temperature viscosity. The content of Sn02 is preferably 0% to 1%, 0.001% to 1%, 0.01% to 0.5%, and particularly preferably 〇_〇 5% to 0.3%. When the content of SnO 2 is too large, the devitrified crystal of Sn 〇 2 is easily precipitated in the glass. Further, when the content of SnO 2 is less than 0.001%, it is difficult to enjoy the above effects.

12 201247585 42467pif is also effective as a clarification. It is true that it is not intended to exclude the inclusion of these ingredients, but it is better to limit the content of these ingredients to less than 〇, respectively. At 0:05%. In addition, the elements such as F and C1 have the effect of making the cooling temperature low and the clarification agent (four) (four). Therefore, when the teeth are added, the melting cost can be reduced and the life of the glass manufacturing furnace can be extended. However, the content of the right f and α (fourth) will cause the formation of the metal on the glass substrate for the liquid crystal lens. Therefore, the content of F and C1 is preferably 1% or less, 〇 5% or less, less than 〇1%, and less than or equal to 0.01%. Ce02, S03, C, and metal powder (e.g., ab, etc.) may be added as a clarifying agent in a range that does not impair the characteristics of the glass. —ZnO is a component that improves the meltability. However, if the content is too large, the glass valley is easily devitrified, and the strain point is liable to lower, and the density is also likely to increase. Therefore, the content of ZnO is preferably 〇% to 1%, 〇% to 5%, 〇% to 3 〇/. 0%~0.5%, G%~G.3%, especially preferably G%~〇.1%.

Zr〇2 is a component which improves weather resistance. However, if the content is too large, the resistance to devitrification is liable to lower, and the dielectric constant or dielectric tangent is liable to increase. Therefore, the content of 'Zr02 is preferably 〇〇/〇~504, 〇〇/. ~, 0% ~ 0.5%, especially good for 〇·〇ι%~〇 2%. Further, in the case where the improvement in devitrification resistance is prioritized, it is preferred to limit the content of Zr 〇 2 to 〇 〇 1% or less.

Ti〇2 is a component that lowers the viscosity of high temperature and improves the meltability, and is a component that inhibits solarization. However, if Tl〇2 is added in more than 13 201247585 42467pif in the glass composition, the glass will be colored and permeated. The rate is easy to reduce. Therefore, the content of Τι02 is preferably 〇% to 5%, 〇% to 3%, 〇% to 1%, and particularly preferably 0% to 0.02%. Ρ2〇5 is a component which improves the devitrification resistance. However, when ruthenium 2〇5 is added to the glass composition, the phase separation and the milkiness are likely to occur in the glass, and the water resistance is remarkably lowered. Therefore, the content of Ρ2〇5 is preferably 〇% to 5%, 0°/〇1%, and particularly preferably 〇% to 5%. Y2〇3, Nb2〇5 'La2〇3 has an effect of increasing the strain point, but if the content of these components is too large, the density tends to increase. Therefore, Y2〇3, Nb2〇5,

The content of LaA is preferably 〇% to 3%, 〇% to 1%, and particularly preferably 〇% to 0.1%. When the content of the alkali metal oxide is increased, the coefficient of thermal expansion becomes high or the strain point is lowered, or the characteristics of the thin film transistor (TFT) are deteriorated. Therefore, the content of the alkali metal oxide is preferably 〇% to 6〇/〇, 〇% to 3%, 〇% to 1%, and particularly preferably 〇〇/. ~〇 1〇/〇. Further preferably, the metal oxide is not substantially contained. From the viewpoint of the environment, it is preferred that substantially no Pb0 or Bi203 is contained. Of course, a preferable range of the content of each component can be appropriately selected, and a preferable glass composition range can be constructed from the viewpoints of resistance to devitrification, density, specific Young's modulus, high temperature viscosity, and environmental requirements. It is especially preferred for the following glass composition range. (1) In terms of mole %, containing 50% to 75% of SiO 2 , 7% to 15% of A12 〇 3, 0o / 0 to 11% of B2 〇 3, 0% to 10% of MgO and 0% 〜 12% CaO, molar ratio MgO/CaO is 0~1.5, molar ratio (SrO+BaO) 201247585 42467pif / (MgO+CaO) is 〇~0.5, molar ratio Mg0/Al203 4 0~0.8, Moer The ratio CaO/Al2〇3 is 〇~1.5, the molar ratio B203/SiO2 is 〇~0.2, and it does not contain metal oxide, As2〇3, Sb2〇3, PbO and Β!2〇3 0 (2). % by mole, containing 55% to 73% of SiO 2 , 9% to 15% of Al 2 〇 3, 0% to 8% of B 2 〇 3, 1 _ 5% to 10% of Mg 〇 and 3% to 10.5% CaO, molar ratio MgO/CaO is 0.2~1.4, molar ratio (SrO+BaO)/(MgO+CaO) is 0.1~0.5, molar ratio Mg0/Al203 is 0.2^~'0.8, Moer ratio CaO /Al2〇3 is 0.2 to 1, and the molar ratio B2〇3/Si〇2 is 0 to 0.2'. It does not substantially contain an alkali metal oxide, As2〇3, sb2〇3, PbO, and Bi203.

(3) In terms of mole %, containing 60% to 73% of SiO 2 , 10% to 15% of Al 2 〇 3, 0% to 5% of B203, 2% to 1% by weight of MgO and 3% to 8% CaO, molar ratio MgO/CaO is 0.6~1.4, molar ratio (SrO+BaO) / (MgO+CaO) is 0.15~0.45, molar ratio Mg0/Al203 is 0.2~0.8, molar ratio Ca0/Al203 It is 0.2 to 0.6, and the molar ratio of B2〇3/SiO 2 is 0 to 0.2, and substantially does not contain an alkali metal oxide, As2〇3, Sb203, PbO, and Bi2〇3. (4) In terms of mole %, contains 60% to 73% of SiO 2 , 11% to 15% of Al 2 〇 3, 0% to 3% of B 2 〇 3, 3% to 9% of MgO, and 3% to 8 The CaO' molar ratio of MgO/CaO is 〇.8~1.4, and the molar ratio (SrO+BaO) /(]^0^0) is 〇.15~0.4' Mo Erbi]^0/ into 1203 0.3~0·75, the molar ratio Ca0/Al203 is 0.3~0.6, and the molar ratio B203/SiO2 is 0~0.15'. It does not substantially contain alkali metal oxide, fine 〇3, sb2〇3, pb〇15 201247585 42467pif And Bi2〇3. (5) In terms of mol%, containing 60% to 72% of SiO 2 , 12% to 15% of Al 2 〇 3, 〇 % 〜 3 〇 / 〇 of B 2 〇 3, 6% to 9% of MgO and 5% ~8% CaO 'Mole ratio MgO/CaO is 1 to 1.4, molar ratio (SrO+BaO) / (MgO+CaO) is 0.15~0.3, and molar ratio Mg0/Al203 is 0·5~0.75, Mo The ear ratio is 0.4 to 0.6 for Ca0/Al203, and the molar ratio B2〇3/SiO 2 is 0 to 0.1, and substantially does not contain an alkali metal oxide, As2〇3, Sb203, PbO, and Bi2〇3. (6) In terms of mol%, it contains 60%~72% of SiO2, 12%~15% of Al2〇3, 〇%~3% of B2〇3, 7.5%~9% of MgO and 5%~8 % CaO, molar ratio MgO/CaO is 1 to 1.4, molar ratio (SrO+BaO) / (MgO+CaO) is 0.15~0·3, molar ratio MgO/Al203 is 0.5~0.7, molar ratio Ca0/Al203 is 〇_4~0.6, and the molar ratio B203/SiO2 is 0 to 0.1, and substantially does not contain an alkali metal oxide, As203, Sb203, PbO and. In the glass substrate for a liquid crystal lens of the present embodiment, the thickness is preferably 400 μm or less, 300 μm or less, or 200 μm or less, and more preferably 100 μm or less. The smaller the plate thickness is, the wider the viewing angle that can be stereoscopically viewed in the 3D display, and the lighter the glass substrate, the lighter the device. Further, since the flexibility of the glass substrate is improved, flexibility can be easily imparted to the device, and a liquid crystal lens can be produced in a roll-to-roll process. In the glass substrate for liquid crystal lens of the present embodiment, the lower limit of each of the length and the width is preferably 500 mm or more and 700 mm or more, and more preferably 1000 mm or more. In addition, the respective upper limits of the length and width dimensions

S 16 201247585 42467pif value is preferably 3000 mm or less, and particularly preferably 2500 mm or less. When the length and the width are larger, the larger the 3D display can be produced. However, if the length and the width are too large, the amount of deflection becomes too large, and the glass substrate is likely to break the glass substrate for the liquid crystal lens of the embodiment. It is preferably 50 angstroms (A) or less, 30 angstroms (A) or less, 10 angstroms or less, 5 angstroms or less, 3 angstroms (A) or less, and more preferably 2 angstroms (A) or less. When the surface roughness Ra is large, the quality of a film such as indium dn oxide (ITO) formed on a glass substrate is lowered, which causes a display failure of the device. Here, "surface roughness Ra" means a value measured by a method according to JIS Β〇 6〇1 : 2〇〇1. In the glass substrate for liquid crystal lens of the present embodiment, the density is preferably 2 g/cm 3 or less, 2.68 g/cm 3 or less, 2.66 g/cm 3 or less, 2.63 g/cm: or less, 2.61 g/cm 3 or less, and 2.59 g/. Below cm3, it is 2.57 g/cm3 or less, and particularly preferably 2.55 g/cm3 or less. If the density is large, it is difficult to reduce the weight of the glass. In the glass substrate for liquid crystal lens of the present embodiment, the coefficient of thermal expansion is preferably 3〇xl〇-7/°c to 5〇xl〇-7/〇C, 32χ1〇-7/ΐ~5〇xl〇-Vc, 3 5 X10'7/C>C 〜5〇x 1 〇-7/°C, 3 7 χ 10.7/〇C ～50 χ 1 〇-7/°C, 3 8 χ 1 〇-7/〇c 〜 49M0 々 ° C, particularly preferably 38xl (T7 / ° C ~ 46xl 〇 -7 / ° C. If the coefficient of thermal expansion is outside the above range, due to the difference in thermal expansion coefficient of the film with a transparent conductive film or patterned, and glass In the glass substrate for a liquid crystal lens of the present embodiment, the strain point is preferably 65 〇 C or more and 67 (TC or more, 69 (TC), and the substrate is likely to be warped on the substrate. 70 (TC or more, 715. (: 17, 17, 47, 585, 42,467 pif, 720 ° C or more, and more preferably 730. (: Above. If the strain point becomes high, even if the conductive film is patterned on a glass substrate, etc. In the case of the glass substrate for the liquid crystal lens, the liquid crystal can be patterned on both surfaces of the glass substrate. The phase temperature is preferably 1320 ° C or less, 129 (TC or less, 125 (TC or less, 1220 ° (hereinafter: 1190 C or less, and particularly preferably ii 7 ° C or less. Thus, devitrification crystals are hard to be generated in the glass, and thus The glass substrate below the plate can be easily formed by an overflow down-draw method or the like. As a result, the surface quality of the glass substrate can be improved, and the production cost of the glass substrate can be reduced. The liquidus temperature is an indicator of devitrification resistance. When the phase temperature is lower, the devitrification resistance is more excellent. In the glass substrate for a liquid crystal lens of the present embodiment, the liquidus viscosity is preferably ^O^Pa·s or more, 104_3dpa·s or more, and 1〇4.5dpa·s or more. 10 dPa · s or more, i 〇 50 dpa · s or more, 1 〇 5.3 dPa · s or more is preferably 1055 dPa · s or more. Thus, devitrification crystals are less likely to occur in the glass during molding, and thus an overflow down-draw method is used. It is easy to form a glass substrate having a thickness of 4 Å. As a result, the surface of the glass substrate for liquid crystal lens can be improved, and the manufacturing cost of the glass substrate for liquid crystal lens can be reduced. Indicator, liquid The higher the viscosity, the more excellent the formability. In general, the high temperature melting increases the burden on the glass melting furnace. The more the high-purity of the oxidized oxidized material in the glass furnace, the more intense it is. The ground erodes the molten glass. If the amount of refractory erosion increases, the life cycle of the glass smelting furnace (de-c(4)) becomes shorter, so the manufacturing cost of the glass-based 201247585 42467pif board is high. Further, in the case of melting at a high temperature, it is necessary to use a member having high heat resistance in the constituent members of the glass frit furnace, so that the proportion of constituent members of the glass melting furnace is increased, and as a result, the melting cost is high. Further, since high-temperature melting is required to maintain the inside of the glass melting furnace at a high temperature, the operating cost is higher than that of low-temperature melting. Therefore, the temperature at l〇2.5 dpa·s is preferably 165 (TC or less, 1640 ° C or less, 1620 ° C or less, 16 〇〇. The following is particularly preferably 1580 C. If the temperature at 1025 dPa · s is too high, the manufacturing cost of the glass substrate is high, and the bubble quality is liable to lower. In the glass substrate for a lens, the Young's modulus is preferably 29 GPa/(g/cm3) or more, 30 GPa/(g/cm3) or more, 3〇5 GPa/(g/cm3) or more, and 3! GPa/. (g/cm3) or more, particularly preferably 3 i 5 (g/cm3) or more. The higher the Young's modulus, the more difficult it is to bend the large-sized, thin-walled glass substrate due to its own weight. The configuration can be considered in combination with an LCD, a liquid crystal lens, an OLED and a liquid crystal lens, etc. In this case, it is preferable to remove the defective products of the device by the process of attaching the respective devices to each other, thereby improving the 3D display. Another aspect is that, because of the addition of the LCD and qLEd to the opposite substrate degree, there is a 3D field of view. In this case, it is preferable to form a lens device after the lens device is patterned on the glass substrate for a liquid crystal lens of the present embodiment, and then form a CF or the like on the back surface of the glass substrate. 1 = The thickness of the glass substrate for liquid crystal lens is substantially the thickness of the liquid crystal lens, and the viewing angle of the 3D display can be improved. 201247585 42467pif The glass substrate for liquid crystal lens of the present embodiment can be produced by: After the glass batch having a predetermined glass composition is put into a continuous glass melting furnace, the glass batch is heated and melted, and the obtained molten glass is clarified, and then supplied to a molding apparatus to be formed into a thin plate shape or the like. The glass substrate for a liquid crystal lens of the form is preferably formed by an overflow down-draw method. Thus, a glass substrate which is not polished and has a good surface quality can be produced. The reason is that in the case of the overflow down-draw method, the glass substrate should be The surface to be the surface is not in contact with the groove-shaped refractory, but is formed in a state of a free surface. The structure or material of the groove-shaped structure is only required The desired size or surface quality is not particularly limited, and the method of applying a force to the glass when extending to the lower side is not particularly limited as long as the dimensional difference or surface quality can be achieved. A method in which a heat-resistant roll having a sufficiently large width is rotated and extended in a state of being in contact with glass, or a method in which a plurality of pairs of heat-resistant rolls are brought into contact with only the vicinity of the end face in the width direction of the glass can be employed. Further, the lower the liquidus temperature or the higher the liquidus viscosity, the easier it is to form a glass substrate having a thickness of 400 μm or less by the overflow down-draw method. In addition to the overflow down-draw method, other forming methods can also be used. For example, a slot down draw method, a re-drawing method, a floating method, or the like can be employed. The glass substrate according to the embodiment of the present invention has a thickness of 400 μm or less and a Young's modulus of 29 GPa/(g/cm 3 or more, and is preferably used in a liquid crystal lens. The technical characteristics, preferable characteristics, and effects of the glass substrate of the present embodiment are the same as those of the glass substrate for a liquid crystal lens of the present embodiment, and thus are omitted.

S 20 201247585 42467pif Detailed description. [Example 1] Hereinafter, an example of the present invention will be described. In addition, the following examples are merely illustrative. The invention is not limited by the following examples. Tables 1 to 5 show examples of the present invention (sample No. 1 to sample No. 35). [Table 1]

No.l No.2 Νο.3 Νο.4 Νο.5 Νο.6 Νο.7 Glass composition (mol%) Si〇2 71.5 72.4 70.9 71.6 71.3 70.4 71.1 Al2〇3 10.6 10.7 10.5 10.6 10.5 10.7 10.0 B203 - - - - - 2.0 2.0 MgO - - 3.3 3.4 - - -' CaO 13.8 11.5 11.3 9.0 13.7 11.5 11.5 SrO - 1.3 - 1.3 1.3 1.3 1.3 BaO 4.0 4.0 3.9 4.0 3.1 4.0 4.0 Sn〇2 0.1 0·1 0.1 0.1 0.1 0.1 0.1 MgO/CaO 0 0 0.30 0.38 0 0 0 (SiO+BaO) / (MgO+CaO) 0.29 0.46 0.27 0.43 0.32 0.47 0.47 Mg0/Al203 0 0 0.32 0.32 0 0 0 Ca0/Al203 1.30 1.07 1.08 0.85 1.30 1.08 1.15 B2O3/ S1O2 0 0 0 0 0 0.03 0-03 ρΓκ/cml 2.64 2.65 2.64 2.64 2.63 2.64 2.63 a『xKTV°Cl 45 45 44 43 46 45 45 PsfCl 750 754 738 741 749 716 712 TapCl 804 809 793 798 802 772 768 TsfC] 1027 1039 1020 1032 1023 1002 1000 104dPa.s[°C] 1348 1367 1340 1363 1335 1327 1329 103dPa.s[°C] 1519 1541 1508 1533 1503 1498 1503 1025dPa*s[〇C] 1628 1653 1614 1640 1610 1607 1615 TL [°C1 1212 1215 1217 1221 1215 1170 1187 log10Tl[dPa«s] 5.2 5.3 5.1 5.2 5.0 5.4 5.2 Young's modulus [GPa] Not determined 82 Not measured 80 81 79 78 Specific Young's modulus [GPa/(g/cm3)] Not determined 31.0 Not determined 30.4 30.9 30.0 29.8 Rigidity [GPa] Not determined 34 Not measured 33 34 33 33 Surface roughness: Degree Ra [ Nm] Not measured Not measured Not measured Not measured Not measured 0.2 Not measured 21 201247585 42467pif [Table 2] N0.8 No.9 No. 10 No. 11 No. 12 No. 13 No. 14 Glass composition (mol%) Si02 69.8 72.0 70.6 71.0 70.9 71.4 70.5 AI2O3 11.1 10.7 10.8 10.9 10.8 10.9 11.1 B2O3 2.0 2.0 2.0 2.0 2.0 2.0 2.0 CaO 11.6 10.4 10.4 9.2 10.4 9.2 10.9 SrO 1.3 1.2 2.0 2.7 1.3 1.4 1.3 BaO 4.1 3.6 4.1 4.1 4.5 5.0 4.1 Sn〇2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MgO/CaO 0 0 0 0 0 0 0 (SrO+BaO) / (MgO+CaO) 0.47 0.46 0.58 0.74 0.56 0.69 0.49 Mg0/Al203 0 0 〇0 0 0 0 Ca0/Al203 1.04 0.97 0.96 0.85 0.96 0.85 0.99 B2O3/S1O2 0.03 0.03 0.03 0.03 0.03 0.03 0.03 Pifi/cml 2.64 2.60 2.64 2.65 2.64 2.65 2.63 αΓχ1〇'7Π 45 43 44 44 44 44 44 Ps[°Cl 718 726 716 719 717 720 720 Ta[° Cl 774 784 773 111 775 779 777 TsfCI 1003 1026 1008 1016 1011 1020 1011 104dPa.s[° C] 1326 1362 1338 1347 1345 1360 1342 103dPa-s[°C] 1496 1538 1512 1522 1520 1536 1515 HPdPa.src] 1604 1648 1621 1633 1628 1648 1623 TL[°C1 1186 1229 1170 1179 1158 1159 1190 l〇g]〇 T)[dPa«s] 5.2 5.1 5.5 5.5 5.6 5.8 5.3

22 201247585 42467pif [Table 3]

No. 15 No.16 No.16 No. 18 No.19 No.21 No.21 Glass composition (mol%) Si02 70.2 70.6 71.0 71.1 71.2 71.0 70.6 AI2O3 11.1 11.5 10.8 10.9 10.8 10.8 10.8 B2O3 2.0 2.0 1.4 1.4 1.4 1.4 1.4 MgO - - - - - - 0.9 CaO 11.3 10.4 10.4 9.8 10.4 10.4 10.4 SrO 1.3 1.3 1.3 1.7 1.3 1.3 1.0 BaO 4.0 4.1 4.5 4.5 4.5 4.5 4.5 ZnO - - 0.5 0.5 - 0.3 - p2〇5 - - - - 0.3 0.2 0.3 Sn 〇2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MgO/CaO 0 0 0 0 0 0 0.08 (SrO+BaO) / (MgO+CaO) 0.46 0.52 0.56 0.63 0.56 0.56 0.49 Mg0/Al203 0 0 0 0 0 0 0.08 Ca0/Al203 1.02 0.9 0.96 0.9 0.96 0.96 0.96 B2O3/S1O2 0.03 0.03 0.02 0.02 0.02 0.02 0.02 Piff/cm勹2.63 2.63 2.66 2.66 2,65 2.65 2.64 ar><10'7〇Cl 45 43 45 44 44 45 44 Ps[°C ] 720 728 721 722 728 724 723 TafCl 111 785 778 780 786 782 780 TsrCl 1009 1024 1013 1017 1022 1018 1015 104dPa-s[°C] 1338 1353 1342 1350 1355 1352 1344 10JdPa-s[°C] 1509 1524 1516 1524 1529 1526 1518 1025dPa.s[°C] 1617 1632 1630 1636 1640 1636 1633 TLpCl 1196 1215 1184 1183 1175 1177 1177 log i〇T)[dPa*s] 5.2 5.2 5.4 5.4 5.6 5.5 5.5 Young's modulus [GPa] Not determined Not determined Not measured Not measured 79 Not measured 79 Specific Young's modulus [GPa/(g/cm3)] Measurement not measured Not measured Not measured 29.8 Not measured 30.1 Rigidity rate [GPa] Not measured Not measured Not measured Not measured 33 Not measured 30 c 23 201247585 42467pif [Table 4] N0.22 Νο.23 Νο.24 Νο.25 Νο. 26 Νο.27 Νο.28 Glass composition (mol%) Si02 70.7 70.3 69.9 70.2 70.1 69.6 69.5 AI2O3 10.9 11.2 11.6 12.4 11.2 11.1 11.1 B2〇3 1·4 1.4 1.4 4.1 ΙΑ 1.4 1.4 MgO - - - 4.1 [7 1.7 1.7 CaO 10.4 10.5 10.5 6.0 9.2 10.4 10.3 SrO 1.4 1.4 1.4 1.3 1.3 0.7 1.3 BaO 4.6 4.6 4.6 1.9 4.5 4.5 4.1 p2〇5 0.5 0.5 0.5 - 0.5 0.5 0.5 Sn〇2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MgO/CaO 0 0 0 0.68 0.19 0.17 0.17 (SrO+BaO) / (MgO+CaO) 0.57 0.56 0.56 0.32 0.54 0.43 0.45 Mg0/Al203 0 0 0 0.33 0.15 0.15 0.15 Ca0/Al203 0.96 0.93 0.90 0.48 0.82 0.93 0.93 B2O3/S1O2 0.02 0.02 0.02 0.06 0.02 0.02 0.02 p[g/cm3] 2.65 2.65 2,65 Not determined Not determined Not determined Not determined a[xl O'7/°C] 45 45 44 Not determined 43 44 44 Ps[°C] 728 731 733 Not determined 722 720 720 Ta[°C] 786 788 790 Not determined 780 777 777 Ts[°C] 1022 1023 1024 Not Determination 1017 1011 1009 104dPa*s[°C] 1352 1352 1350 Not determined 1344 1335 1330 103dPa-s[°C] 1525 1523 1519 Not determined 1516 1504 1498 1025dPa.s[°C] 1637 1633 1627 Not determined 1624 1611 1605 TL [°C] 1176 1182 1190 Not determined 1179 1182 1191 log10ri[dPa.s] 5.6 5.5 5.4 Not measured 5.5 5.4 5.2 Young's modulus [GPa] Not determined 79 Not determined Not determined 79 Unmeasured unmeasured Young's modulus [GPa/ (g/cm3)] Not determined 29.7 Not measured Not measured Not measured Not measured Unmeasured rigidity rate [GPa] Not measured 33 Not measured Not measured 33 Not measured Not measured 24 s 201247585 42467pif [Table 5]

No.29 No.30 No.31 Νο.32 Νο.33 Νο.34 No.35 Si〇2 68.7 70.0 70.5 70.4 67.2 67.3 67.5 Al2〇3 11.2 11.2 11.1 11.0 12.3 12.2 12.3 B2〇3 1.4 1.4 ΙΑ 1.4 2.8 2.8 2.8 MgO 5.4 0.9 2.6 3.4 8.2 7.9 7.9 CaO 8.1 10.4 8.6 8.5 6.3 6.2 6.2 SrO 1.1 1.0 0.7 0.3 0.6 1.3 0.6 BaO 3.5 4.5 4.5 4.0 2.2 2.2 2.6 ZnO - - - 0.4 - - - P2〇5 0.5 0.5 0.5 0.5 0.3 - - Sn02 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MgO/CaO 0.66 0.08 0.30 0.40 1.31 1.28 1.28 (SrO+BaO) / (MgO+CaO) 0.34 0.49 0.46 0,36 0.19 0.24 0.23 Mg0/Al203 0.48 0.08 0.23 0.31 0.67 0.65 0.65 Ca0 /Al203 0.73 0.93 0.78 0.78 0.51 0.50 0.50 B2O3/S1O2 0.02 0.02 0,02 0.02 0.04 0.04 0.04 p[g/cm3] Not determined Not measured Not measured Not measured 2.56 2.57 2.57 a[xlO'7/°C] 41 Not determined Not determined not determined 38 '39 38 PsfCl 718 725 725 722 718 718 719 TarCI 774 782 784 780 774 774 774 Ts [°C] 1006 1016 1024 1022 998 998 1000 104dPa-s[°C] 1321 1341 1358 1350 1301 1298 1303 10JdPa.s[°C] 1484 1509 1530 1520 1458 1454 1460 10A5dPa*s[°C] 1589 1618 1637 162 8 1555 1555 1561 TL[°C1 1190 1182 1187 1206 1219 1181 1182 logi〇q[dPa*s] 5.2 5.4 5.5 5.2 4J 5.1 5.1 Young's modulus [GPa] Not determined 80 80 80 83 83 84 Specific Young's modulus [GPa/(g/cm3)] Not measured Not measured Not measured Not measured 32.5 32.5 32.5 Rigidity rate [GPa] Not measured 33 33 33 34 34 34 Surface roughness Ra [nm] Not measured Not measured Not measured Not measured Not measured Measurement 0.2 Not measured Sample No. 1 to Sample No. 35 were prepared as follows. First, a glass batch which has been formulated into a glass composition in the table is added to a platinum crucible, melted at 1600 ° C for 24 hours, and then discharged onto a carbon plate to be formed into a flat plate shape. Next, for each of the obtained samples, the density p, the coefficient of thermal expansion α, the strain point Ps, the slow cooling point Ta, the softening point Ts, the temperature at 104 dPa · s, the temperature at 103 dPa · s, and the time at 102 5 dPa · s were evaluated. Temperature, liquidus temperature TL, 25 201247585 42467pif liquid viscosity log^ifTL, Young's modulus, specific Young's modulus, rigidity rate. The density P is a value measured by a well-known Archimedes method. The coefficient of thermal expansion α is a value measured by a dilatometer and is an average value of a temperature range of 3 380 °C. The strain point Ps, the slow cooling point Ta, and the softening point Ts are values measured based on ASTM C336. The temperature at 104 () dPa · s, the temperature at i 〇 3 〇 dPa · s, and the temperature at 1 〇 2.5 dpa • s are values measured by a platinum ball pulling method. The liquidus temperature TL is obtained by adding glass powder remaining at 50 mesh (300 μm) through a standard sieve (3 μm) to a boat, and the uranium boat is kept in a temperature gradient furnace for 24 hours. The value obtained by the temperature at which the crystals are precipitated. The liquid phase viscosity logioil TL is a value obtained by measuring the viscosity of the glass at a liquidus temperature TL by a tumbling pulling method. The Young's modulus and the rigidity are values measured by a well-known resonance method. As shown in Tables 1 to 5, in Sample No. 1 to Sample No. 35, since the glass composition was limited to a predetermined range, the density p was 2.66 g/cm3 or less, and the thermal expansion coefficient α was 38χ1〇-7/°. 〇~46xlO-7/°C' strain point 卩8 is 712°c or more, temperature at 1025dPa·s is below 1653°C, liquidus temperature TL is below 1229°C, 'liquidus viscosity l〇g1Gr|TL is 4.7 or more, the Young's modulus is 78 GPa or more, and the Young's modulus is 29.7 GPa/(g/cm3) or more. In particular, since Sample No. 1 to Sample No. 35 have good resistance to devitrification, they are easily formed into a sheet thickness of 400 μm or less and further have a Young's modulus, and therefore, even when the sheet thickness is 400 μm or less, The glass substrate is also not easily deflected.

26 201247585 42467pif , it is considered that the sample Να1 to N 〇.35 are preferable as the glass plate for liquid crystal lens. Further, the sample N (U to the sample plate 35 does not contain As2〇3, Sb2〇3 in the glass composition, and contains Sn〇2, so the bubble quality is good. [Example 2] In the test melting furnace, the sample is tested. N〇.6, after the glass crucible of the sample N〇34 is melted, a glass substrate for a liquid crystal lens having a width of 15 guaguas and a thickness of 250 μm is formed by an overflow down-draw method. As a result, the liquid crystal lens The surface roughness Ra of the glass substrate is 20 angstroms or less (refer to Table!, Table 5). Further, at the time of molding, the speed of the stretching rolls, the speed of the cooling rolls, the temperature distribution of the heating device, and the temperature distribution of the heating device are appropriately adjusted. The temperature of the molten glass, the flow rate of the molten glass, the pulling speed of the plate, the number of revolutions of the stirrer, etc., to adjust the surface quality of the glass substrate for liquid crystal lens. [Simplified description of the drawing] None. [Description of main component symbols] None 0 27

Claims (1)

201247585 42467pif VII. Patent application scope: 1. A glass substrate for liquid crystal lens, characterized in that: as a glass composition, 45% by mole of Al2〇, 5% to 15% of Al2〇 3. 〇〇/〇~15% of b203, 0%~15% of MgO and 〇%~15% of CaO' and the plate thickness is 400 μm or less. 2. The glass substrate for liquid crystal lenses according to claim 1, wherein the specific Young's modulus is 29 GPa/(g/cm3) or more. 3. The glass substrate for a liquid crystal lens according to claim 1 or 2, wherein the strain point is 650 ° C or higher. 4. The glass substrate for liquid crystal lens of any one of the above-mentioned claims, wherein the density is 2.7 g/cm3 or less. 5. The glass substrate for a liquid crystal lens according to any one of claims 1 to 4, wherein the temperature at 1025 dPa.s is 1650 ° C or less. 6. The glass substrate for liquid crystal lens of any one of Claims 1 to 5, wherein the liquidus viscosity is l〇4_0 (iPa·s or more. 7) as claimed in claim 1 The glass substrate for liquid crystal lenses according to any one of the preceding claims, wherein a thermal expansion coefficient at 30 ° C to 380 ° C is 3 〇 x 1 (T7 / ° C to 5 〇 x l 〇 -7 / ° C. The glass substrate for liquid crystal lenses of any one of Claims 1 to 7 is formed by an overflow down-draw method. 9. A glass substrate for liquid crystal lenses, which is characterized by a glass composition. In terms of mole %, containing 45% to 75% of SiO 2 , 5% to 15% of A 1203, 0% to 15% of B 2 〇 3, 〇 % to 15% of MgO, 28 S 201247585 4Z40/pif and 0% ~15% CaO, Mohr ratio Mg0/Ca0 is 〇~〗 5, Mohr ratio (SrO+BaO) / (MgO+CaO) is 〇~1, Mohr ratio Mg0/Al203 is 0~1, Moer The ratio CaO/Al2〇3 is 〇~3, and the molar ratio B203/SiO2 is 0~0.3, which does not substantially contain metal oxide, As203, Sb203, PbO and Bi2〇3' than Young's modulus is 29 GPa/ (g/cm3) or more, heat at 3 ° ° C ~ 380 ° C The expansion coefficient is 3〇xl〇-7/°C~5〇xl (T7/°c, the density is 2.6g/cm3 or less, the liquidus viscosity is 1〇5.〇dPa·s or more, and the width dimension is 500mm or more. The length is 5 〇〇mm or more and the thickness is 4 〇〇 or less. 10. A glass substrate for a liquid crystal lens, characterized in that: as a glass composition, 45% to 75% of Si 以 is contained in % by mole 2, 5% ~ 15% of A1203, 〇% ~ 15% of B2 〇 3, 0% ~ 15% of MgO, and 0 ◦ / 〇 ~ 15% of CaO, Mo ratio MgO / CaO is 0 ~ 1.5, Mohr ratio (SrO+Ba〇) / (Mg〇+Ca〇) is oy, Mohr ratio Mg〇/Al2〇3 is 0~1 'Mo Er ratio CaO/Al2〇3 is 〇~3, Mo Erbi B2〇3/siQ2 is 〇~〇.3 'Substantially does not contain metal oxide, As2〇3, sb, pb〇 and Bi2〇3' than Young's modulus is 29 GPa/(g/cm3) or more , at 3〇. The thermal expansion coefficient of 〇~380°c is 3〇xl〇-7/°c~5〇xl〇_7/〇c, the density is below 2.6g/cm3, and the liquid viscosity is i〇5. 〇dPa·s or more, the sheet thickness is below μιη. 11. A liquid crystal lens characterized by including the first to the ίο The crystal according to any one of a glass lens substrate. A glass substrate having a thickness of 400 μm or less and a Young's modulus of 29 GPa/(g/cm3) 29 201247585 42467pif or more. 13. The glass substrate of claim 12, which is used in a liquid crystal lens. 30 S 201247585 42467pif IV. Designated representative map: (1) The representative representative of the case is: None. (2) A brief description of the component symbols of this representative figure: None. 5. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: None. S 201247585 Correction period: 1〇1年年16月16日第lonmi2号 Chinese manual No underline repair^# 登里专利手册 (The format and order of this manual, please do not change it arbitrarily, please do not fill in the ※ part) ※ Application No.: c〇^cV^S (2006.01) ^7(2006.01) ^/v^\ (2006.01) ^4^(2006.01) ※Application Date: Classification: 1. Invention Name··(Chinese/English) LCD Glass substrate for lens GLASS SUBSTRATE FOR LIQUID CRYSTAL LENS ° II. Abstract: The glass substrate for liquid crystal lens of the present invention contains, as a glass composition, 45% to 75% of SiO 2 , 5% to 15% by mol% Al2〇3, 0% to 15% of B2〇3, 〇%~15% of MgO, and 0%~15% of CaO, and the plate thickness is 400 μm or less. 3. Inventive Abstract: This invention relates to a glass substrate which is for liquid crystal lens and has a glass composition (by mole%), including 45% to 75% of Si〇2, 5% to 15% of AI2O3,〇 % to 15% of B2〇3, 0% to 15% of MgO, and 0% to 15% of CaO, and has a thickness equal to or less than 400 μη. 201247585 I Aar t N/ / is the l〇m4412 No. Chinese manual, no slash correction, this period: 1.1, August 16th, sixth, invention description: [Technical field of invention] The present invention relates to a three-dimensional '3D Liquid 曰. Mirror glass substrate for the viewing area control unit of the display. [Prior Art] 〇 In recent years, 3D display devices that do not require glasses have appeared on the market. As a 3D display method that does not require glasses, a barrier (Parallax Barrier) type and a method of using a lens have been proposed. The parallax screen ^ is a method of covering the display pixels by a stripe-shaped barrier set to an appropriate interval to form a binocular parallax. Recently, there has also been a type of crystal to create a barrier that can be switched between 2D and 3D. However, the type of liquid has to use some barriers to hide at least the portion of the face, and there is a problem that the brightness of the display is lowered. On the other hand, the basic principle of the method of using a lens is similar to the parallax type, which is a method of dispersing a plastic film by a plastic film instead of a barrier. In this method, the brightness of the indicator is not blocked because the surface is not blocked, but there is a question that cannot be switched between 20 and 3 inches. As a way to solve these problems, we are studying ways to control the field of view. In this embodiment, an electric field is applied to the liquid crystal between the two glass substrates on which the polarizing film is formed, and the alignment of the liquid crystal is changed, thereby imparting a lens-like action. . Moreover, in this way, it will not be as the parallax barrier = that 3 201247585 ϋΪΗ 412 correction date: turn to August 16 to cover the pixel, and can also switch between 2D and 3D, so can be expected as the next generation of 3D The viewing area control mechanism of the display. However, in the aspect in which the liquid crystal lens is used for the viewing area control, when the liquid crystal lens is disposed on the pixel of the display device, the distance between the pixels and the lens becomes long, and the viewing angle of 3 D becomes narrow. problem. This problem is caused by a situation in which a glass substrate of 0.5 mm to 0.7 mm is present on the front side of a display portion of a liquid crystal display (LCD) or a light-emitting diode (OLED). Further, the thickness of the glass substrate of the liquid crystal lens is added. On the other hand, if the thickness of the glass substrate for liquid crystal lenses is made small, the above problem can be improved. However, if the previous glass substrate is reduced in thickness, it is easily deflected. When the glass substrate is deflected, there is a problem that a desired film formation (for example, film formation of a transparent conductive film or the like) cannot be performed on the surface of the glass. SUMMARY OF THE INVENTION Therefore, a technical object of the present invention is to provide a 3D which has a short transparent plate and a transparent conductive film, etc., by providing a glass plate which is not secreted even if the thickness is reduced. The viewport control section of the display. . As a result of various experiments, the inventors of the present invention have found that the above-mentioned technical problems can be solved by strictly limiting the glass composition and size of the glass substrate. That is, the glass substrate for liquid crystal lenses of the present invention is characterized in that it has a glass composition and is a molar. Eucalyptus leaves, containing 45% to 75% of Si〇2, 5%~15% of Al2〇3, 〇%~(10) of b2o3, 〇%~15% of Mg0, and 〇%~15% of Ca〇, and The thickness of the plate is χΠ 201247585 Revision date: August 16, 2011 is the 1011Μ412 Chinese manual without a slash correction 400 μηι or less. If the glass composition is restricted as described above, the devitrification resistance and the specific Young's modulus can be improved. When the resistance to devitrification is high, the thickness is preferably 400 μm or less. When the thickness is larger than the Young's modulus, the glass substrate is less likely to be bent even when the thickness is 400 μm or less. Further, if the glass composition is restricted as described above, the density and high-temperature viscosity can be lowered. Ο 〇 Furthermore, if the thickness of the glass substrate is limited to 4 μm or less as described above, the viewing angle of the 3D display can be enlarged. Further, it is possible to impart flexibility to the glass substrate, and the glass substrate can be wound into a roll to form a glass roll. When the glass substrate is in the state of a glass roll, the formation of the transparent guide or the thinning can be continuously performed, and the production efficiency of the liquid crystal lens is drastically improved. Second, the glass substrate for a liquid crystal lens of the present invention preferably has a specific Young's modulus of 29 GPa/(gW) or more. Here, "Bian Young's modulus" is a value obtained by dividing the Young's modulus by the value of the density. "Young's modulus" means a value measured by a known resonance method or the like. "Density" can be measured by knowing the knowledge. The glass substrate for liquid crystal lenses of the first month is preferably a strain point of 65 (TC or more. Here, the "strain point" means a value measured according to AS·C336. The fourth 'the present invention The glass substrate for a liquid crystal lens preferably has a density of 2 7 g/cm 3 or less. Fifth, the glass substrate for a liquid crystal lens of the present invention preferably has a wavelength of 10 〇 25 dPa 201247585 .. r ^μ, λ. 1 Revision date: 1〇 On August 16th, 1st, the Chinese manual No. 101114412 has no scribe line correction. The temperature at s (s) is 165 (TC or less. Here, the temperature at "U) 25dPa·s is equivalent to the k-thaw temperature. The liquid crystal lens for a liquid crystal lens of the present invention preferably has a liquidus viscosity of 1040 dPa·s or more. Here, "liquid phase viscosity" means a liquid using a tumbling method. The value obtained by the viscosity of the glass at the phase temperature. "The liquid phase temperature will be added to the platinum boat by the glass powder of 5 mesh (3 μgm) remaining at 30 mesh (500 μm). The platinum boat was kept in a temperature gradient furnace for 24 hours to determine the temperature at which the crystal was precipitated. In the seventh embodiment, the glass substrate for a liquid crystal lens of the present invention preferably has a thermal expansion coefficient of 3 〇 x 1 (T7 / ° C 〜 5 〇 xl 〇 '7 / ° c) at a temperature of 3 ° C to 380 ° C. Here, the "thermal expansion coefficient" is a value measured by a dilatometer, and is an average value in a temperature range of 3 (rc to 380 ° C.) Eighth, the glass substrate for a liquid crystal lens of the present invention preferably uses an overflow. Here, the "downflow down-draw method" is also called a melting method, and the molten glass is allowed to overflow from both sides of the heat-resistant groove-like structure, and the molten glass which overflows is formed in the groove-like structure. The glass substrate for liquid crystal lens of the present invention is characterized in that the glass composition '% by mole' contains 45% to 75% of SiO 2 and 5% as a glass substrate. ~ 15% Al2〇3, 0%~15% B2〇3, 0%~15% MgO, and 〇%~15% CaO 'Mo Erbi MgO/CaO is 0~1.5, Mo Erbi ( SrO+BaO) / (MgO+CaO) is 〇~1 ' Mohr ratio Mg0/Al203 is 0~ Bumor ratio CaO/Al2〇3 is 〇~3, Moer than B203/Si02 is 0~0.3, real Does not contain alkali metal oxides (Li2〇, Na20, K20), 201247585 ~r^^r\jf Correction period: 1〇1年8月16日第101114412号 Chinese manual no painting line correction this As203 , ^2〇3, PbO and Bi20, the Young's modulus is 29 Gpa/(g/cm3) or more, 303⁄4~38 (the thermal expansion coefficient of TC is 3〇xl〇-7/°C~50 parent 107/ (: 'The density is 2.6 § / (; 1113 or less, the liquid viscosity is 1 〇 5. 以上 (11 ^ • s or more, the width dimension is 5 〇〇 mm or more, the length dimension is 5 〇〇 mm or more, and the thickness is 400 μηι or less. Here, "SrO+BaO" means that the combined amount of SrO and BaO JMg0+Ca0" means the sum of the 8〇 and Ca〇. The phrase "substantially does not contain ~" means that the content of the target component in the glass composition is less than 0.1 mol%. For example, "substantially does not contain As2〇3" means that the content of As2〇3 in the glass composition is less than 01% by mole. Tenth, the glass substrate for liquid crystal lenses of the present invention is characterized in that it contains 45% to 75% of Si 2 , 5% to 15% of Al 2 〇 3 , 〇〇 / 作为 as a glass composition. ~15% b2〇3, 〇%~15% Mg〇 and 〇%~15% CaO, Mohr ratio MgO/CaO is 〇~1.5, Mo Er ratio (SrO+BaO) / (MgO+CaO) 〇 卜 卜 卜 卜 卜 M M M M M 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 Ca Ca Ca Ca Ca Ca Ca Ca Ca Ca Ca Ca The metal oxide, aS2〇3, sb2〇3, :pbO, 〇 and Bi2〇3' have a modulus of elasticity of 29 GPa/(g/cm3) or more, and the coefficient of thermal expansion at 30 °C to 380 °C is 3〇xl (T7/°C~50><10_7/.〇, density is 2.6g/cm3 or less, liquid viscosity is l〇5°dPa·s or more, and plate thickness is 4〇〇μηι or less. A liquid crystal lens according to the present invention includes the above-described glass substrate for a liquid crystal lens. The twelfth aspect of the present invention is characterized in that the glass substrate of the present invention has a thickness of 4 〇〇μηι or less and a Young's modulus is 29 GPa/ (g/cm3) or more. In addition, 7 201247585 • ** > W ( Λ For the Chinese manual No. 101114412, there is no slash correction. The date of this revision is August 16th. The glass substrate of the invention of Japan is particularly suitable for liquid crystal lens applications, but it can also be applied to organic electroluminescence other than liquid crystal lenses. EL) The use of the substrate of the display, etc. Thirteenth, the glass substrate of the present invention is preferably used for a liquid crystal lens. [Effects of the Invention] According to the present invention, a glass substrate which is less likely to be deflected even if the thickness is small can be provided. Therefore, when the glass substrate is used, it is possible to manufacture a viewing area control unit of a 3D display having a short distance between the pixels and the lens and having a suitable transparent conductive film. [Embodiment] The liquid crystal lens of the embodiment of the present invention is used. The glass substrate is made of glass red, containing 45% to 75% of SiO 2 , 5% to 15 〇 / 0 of Al 2 〇 3, 〇〇 / 0 to 15% of b 2 〇 3, 0% 〜 15% of Mg〇 and 〇% to 15% of CaO. The following is a reason for limiting the content range of each component as described above. The content of Si〇2 is 45% to 75%, preferably 50% to 73%, More preferably 55% to 72%, and even more preferably 60% When the content of Si〇2 is too small, it is difficult to achieve a low density. On the other hand, when the content of Si〇2 is too large, the high-temperature viscosity is undesirably high, and the meltability is lowered. Zhonggu is prone to defects such as devitrification crystals (crist〇baiite). The content of Al2〇3 is 5% to 15%. When the content of Al2〇3 is too small, it is difficult to increase the Young's modulus or heat resistance, and the high-temperature viscosity is undesirably high, and the meltability is liable to lower. Therefore, the preferred lower limit range of ruthenium is 7% or more, 9% or more, 10% or more, 11% or more, and particularly preferably 12% or more. On the other hand, if the content of Al2〇3 is too large, the liquidus temperature becomes high, and the devitrification resistance is resistant. 201224585 ~r^~TKJ / L/iil is No. 101114412 Chinese manual without straight line correction This revision date: 丨〇1 On August 16th, sex is easy to reduce. Therefore, the preferred upper limit of A 丨 2 〇 3 is 145 〇 / 〇 or less, 14% or less, 13.5% or less, and particularly preferably 13% or less. o Βζ〇3 acts as a flux' and is a component that lowers high temperature viscosity and improves meltability. The content of B2〇3 is 〇% to 15%. If the content of B2〇3 is too large, it is difficult to increase the Young's modulus due to the decrease in Young's modulus, and the heat resistance or the property can be easily lowered. Therefore, the preferred upper limit range of 'ha' is 11% or less, 8% or less, 5% or less, 3% or less, or 1% or less, and particularly preferably 0.5% or less. Further, when the content of B2〇3 is small, there is a tendency that the high-temperature viscosity is increased and the bubble quality is lowered, and the density tends to increase. The content of MgO is 0% to 15%, and Mg is the following component. That is, MgO is a component which does not lower the strain point and lowers the high temperature viscosity and improves the meltability. Further, MgO is the most effective component for reducing density in alkaline earth metal oxides. Further, it is a component having a large effect of increasing the Young's modulus. However, if the content of MgO is too large, the liquidus temperature rises and the devitrification resistance is liable to lower. Therefore, a preferred upper limit range of MgO is 12% or less and 1% by mole or less, and particularly preferably 9% or less, and a preferred lower limit range of MgO is 1% or more, 1.5% or more, 3% or more, and 3.5% or more. 4% or more, 6% or more, and particularly preferably 7.5% or more. The content of CaO is 〇% to 15%. QCa〇 is a component which does not lower the strain point and lowers the temperature viscosity and significantly improves the meltability. Further, in the alkaline earth metal oxide, when the content of Ca 相对 is relatively increased, it is likely to cause glassiness and low density. However, if the content of Ca0 is too large, the coefficient of thermal expansion or the cost will be undesirably high, and the balance of the composition of the glass composition is destroyed, so that the devitrification resistance is liable to lower. Therefore, the preferred upper limit of Ca〇 is 201247585 ~ΓΑ»~Γν/ / J^XXA Revision period: 1〇1年16月16日第101114412 Chinese manual no underline correction 13% or less, 12 % or less, ιι〇/〇 below, 1〇5〇/〇 or less, 9〇/〇 or less, and particularly preferably 8% or less. Further, a preferred lower limit range of CaO is 1% or more, 3% or more, 4% or more, 5% or more, and particularly preferably 55% or more. In addition to the above components, for example, the following components may be added. SrO is a component which does not lower the strain point and lowers the high temperature viscosity and improves the melting property. However, if the content of SrO is increased, the density or the thermal expansion coefficient tends to increase. Further, when the content of SrO is increased, in order to match the coefficient of thermal expansion of si, it is necessary to relatively reduce the content of Ca0 or Mg〇. Further, due to a decrease in the content of CaO or MgO, the devitrification resistance is likely to be lowered, or the Young's modulus is lowered, and the high-temperature viscosity is increased. Therefore, the content of SrO is preferably 〇%~1〇0/. 〇%~5%, ~, 〇%~1.8%, 〇%~ι·4%, 〇%~1%, especially preferably 〇%~〇. _ Ba〇 is a component that does not lower the strain point, but lowers the high temperature viscosity and improves the melting property, or improves the resistance to devitrification. If the content of Ba〇 is increased, the degree of post-or the coefficient of thermal expansion tends to increase. Further, if the content of Ba〇 is increased, the coefficient of thermal expansion of Si is matched, and the content of CaO or MgO must be relatively lowered. As a result, it is easy to cause a decrease in the resistance to devitrification, or a decrease in the Young's mold, and the temperature is still sticky. Therefore, the content is preferably 〇% to 10〇/〇. The preferred upper limit of Ba〇 is hereinafter, 6% or less, 5% or less, and particularly preferably 3% or less. Further, a preferred lower limit of Ba 为 is 0.5% or more, 1% or more, u% or more, and particularly preferably 2% or more. The θ molar ratio Mg0/Ca0 is preferably 〇~1.5. If the value is larger, the Young's mold tends to become hazy and the viscosity at high temperature is lowered, and if the value is too large, the glass is more likely to devitrify. Therefore, the preferred upper limit of the molar ratio Mg〇/Ca〇 201247585 τζ, τυ / JJl/1 Revision date: August 16th of the following year is the 101111412 Chinese manual without a slash correction. The range is 1-4. Hereinafter, a preferred lower limit range is 〇·2 or more, 0.4 or more, 0.6 or more, or 0.8 or more, and particularly preferably i or more. The molar ratio (SrO+BaO) / (Mg0+Ca〇) is preferably 〇~b. If the value is larger, the devitrification resistance tends to be improved, and if the value is too large, the high temperature viscosity and density are high. The coefficient of thermal expansion becomes too high, or is lower than the Young's modulus. Therefore, a preferable upper limit range of the molar ratio of SrO + BaO / (MgO + CaO) is 0.8 or less, 0.6 or less, 0.5 or less, 0.45 or less, 0.4 or less, and particularly preferably 0.35 or less. Further, a preferred lower limit range of the molar ratio (Sr〇+Ba〇) /(MgO+CaO) is 〇〇5 or more, 〇1 or more, 0.15 or more, 0.2 or more, 0.25 or more, and particularly preferably 〇·3 or more. . The molar ratio MgO/Al2〇3 is preferably 〇~1. When the value is larger, the Young's modulus is increased and the viscosity is lowered, and if the value is too large, the devitrification resistance is lowered, or the density or the thermal expansion coefficient is excessively high. Therefore, the preferred upper limit range of the molar ratio MgO/Al2〇3 is 〇9 or less, 〇8 or less, 0.75 or less, and particularly preferably 0.7 or less. Further, a preferred lower limit of the molar ratio Mg 〇 / Al 2 〇 3 is 0.2 or more, 〇. 3 or more, and particularly preferably 〇 5 or more. The molar ratio CaO/AbO3 is preferably 〇~3. When the value is larger, the Young's modulus becomes higher and the high-temperature viscosity tends to decrease, and if the value is too large, the liquid phase viscosity becomes extremely high, and the density or thermal expansion coefficient becomes excessively high. The preferred upper limit of the molar ratio CaO/Al2〇3 is 2 or less, 丨5 or less, 丨5 or less, 〇8 or less, and particularly preferably 0.6 or less. A preferred lower limit range is 〇1 or more, 0.2 or more, and 0.3. The above, 0.4 or more, and particularly preferably 〇5 or more. The molar ratio B2〇3/Si〇2 is preferably 〇~〇.3. If the value is larger, the high temperature viscosity is lowered, the meltability is increased, or the density is lowered or the liquidus temperature is lowered. 11 201247585 Γ ^ I t Λ is the 101114412 Chinese manual without a slash correction. Amendment date: August 16, 101 tendency. However, if the value is too large, the strain point and the Young's modulus are liable to lower. Therefore, the preferred upper limit range of the molar ratio B203/SiO2 is 0.25 or less, 0.2 or less, 0.15 or less, and particularly preferably 0.1 or less. MgO + CaO + SrO + BaO is a component which lowers the liquidus temperature and which does not easily generate crystal foreign matter in the glass, and is a component which improves meltability or formability. The content of MgO+CaO+SrO+BaO is preferably 〇〇/〇~25%, 3%~20%, 5%~19%, 10%~19%, 12%~19%, 12.5%~19%, Especially good is 14%~19%. When the content of MgO+CaO+SrO+BaO is too small, the function as a flux is not sufficiently exhibited, the meltability is liable to lower, and the thermal expansion coefficient of 〇 is too low, and it is difficult to match the thermal expansion coefficient of Si. On the other hand, when the content of MgO+CaO+SrO+BaO is too large, the density is increased, and it is difficult to achieve a low density, and the Young's modulus is liable to lower, and the thermal expansion coefficient is not changed. Further, "MgO+CaO+SrO+BaO" is a combination of MgO, CaO, SrO, and BaO. A clarifying agent is a component used to improve the quality of bubbles. Previously, as a clarifying agent, As2〇3, St>2〇3 was used. However, As203 and Sb203 are substances that cause a load on the environment. From the viewpoint of the environment, it is desirable to reduce the amount of these components. Therefore, if Sn 〇 2 is used as the clarifying agent, the quality of the bubble can be improved in consideration of environmental requirements. Sn〇2 is a component which exerts a good clarifying action in a high temperature range and is a component which lowers high temperature viscosity. The content of Sn02 is preferably 〇%~1〇/〇, 〇1%~1%, 〇1%~ 〇.5%, and particularly preferably 0.05% 〇.3%. When the content of Sn 〇 2 is too large, the devitrified crystal of Sn 〇 2 is easily precipitated in the glass. Further, when the content of Sn 〇 2 is less than 0.001%, it is difficult to enjoy the above effects. 12 201247585 Revision date: August 1st, August 6th is the 1st (H114412 Chinese manual without a slash correction.) 3, Sb203 / 対贱 as a clarification function play side, this implementation is open, the towel is not completely excluded The content of the components is preferably limited to less than 01%, and more preferably less than 0.05%, from the viewpoint of the environment, and halogens such as F and C1 have a low melting temperature. Further, the effect of the action of the clarifying agent is promoted. Therefore, if the element is added, the cost of the smelting and melting can be reduced, and the life of the glass-making furnace can be extended. However, if the content of the right F and C1 is too high, the formation may sometimes occur. In the liquid crystal lens, the wiring pattern of the metal on the substrate is corroded. Therefore, the content of F and C1 is preferably 1% or less and 5% or less, and less than 〇% or 5% or less. It is preferably 0.01% or less. Ce02, S03, C, a metal powder such as A1, Si, or the like may be added as a clarifying agent in a range that does not impair the glass characteristics. ZnO is a component which improves the meltability. However, if the content is too large, the glass is easily devitrified, and the strain point is liable to lower, and the density is also likely to increase. Therefore, the content of ZnO is preferably 〇% to 1%, 〇% to 5%, 〇〇/. ~, 0%~0.5%, 〇%~〇.3%, especially preferably 〇%~〇 1%. 〇Zr〇2 is a component that improves weather resistance, but if it is too much, it is resistant to loss, and the tolerance is reduced. 'In addition, the dielectric dielectric dielectric is ideetrie tangent. 谷易升β, so the content of 'Zr〇2 is better. It is 5%/〇~5%, 〇0/〇~3%, 〇%~0.5%, and particularly preferably 0.01%~0.2%. Further, in the case where the improvement in devitrification resistance is prioritized, it is preferred to limit the content of Zr 〇 2 to 〇 〇 1% or less. TiCb is a component that lowers the viscosity of high temperature and improves the meltability, and is a component that suppresses the slarting effect, but if it is in the glass composition, 13 201247585 is the first chattering _ makeup makeup sun: 丨 _ August Adding Ti02 ' more on the 16th will color, and the transmittance will be easily reduced. Therefore, the content of Ti〇2 is preferably 0% to 5%, 0% to 3%, 〇% to 1%, and particularly preferably 0% to 0.02%. * P2〇5疋 is a component that is resistant to devitrification. However, when P205 is added to the glass composition, it is easy to cause phase separation in the glass, and the water resistance is remarkably lowered. Therefore, the inclusion of the record is preferably Q%~5%, 0%~1% ’, especially 〇%~0 5〇/〇. Y2〇3, Nb2〇5 'La2〇3 has an effect of increasing the strain point, but if the content of these components is too large, the density tends to increase. Therefore, the contents of Y2〇3, Nb2〇5, and 〇La203 are each preferably 〇% to 3%, 〇% to 1%, and particularly preferably 〇% to 0.1%. When the content of the alkali metal oxide is increased, the coefficient of thermal expansion becomes high, or the strain point is lowered, or the characteristics of the thin film transistor (thin fiim transist 〇r, τρτ) are deteriorated. Therefore, the content of the alkali metal oxide is preferably 〇% to 6%, 〇% to 3%, 〇% to 1%, and particularly preferably 〇% to 〇1%. Further preferably, the metal oxide is not substantially contained. From the viewpoint of the environment, it is preferable that it does not substantially contain this 0, then 2〇3. 〇Although the preferable range of each component can be appropriately selected, a preferable glass composition range can be constructed, from the viewpoints of resistance to devitrification, density, specific Young's modulus, high temperature viscosity, and environmental requirements. , especially for the following glass composition range. (1) Mg containing 50% to 75% of SiO 2 , 7% to 15% of A12 〇 3, 0 〇 / o 〜 11% of B2 〇 3, 〇 0 / 〇 ~ 1 〇 % 〇 and 〇%~12〇/〇 of CaO 'Mo Erbi Mg0/Ca0 is 〇~丨5, Moer than (Sr〇+Ba〇) 14 201247585 -T^-r\J / pil l is No. 101114412 Chinese manual without painting! Gland correction date of revision: August 16th, 2011 / (MgO + CaO) is 0~0.5, Moh ratio is 0~0.8 for Mg0/Al203, Moh ratio is 0~1.5 for Ca0/Al203, Mobi is B203/ SiO2 is 0 to 0.2, and does not substantially contain an alkali metal oxide, As203, Sb2〇3, PbO, and Bi2〇3 0 (2) in terms of mol%, containing 55% to 73% of SiO 2 , 9% to 15 % Al2〇3, 0%~8% B203, 1.5%~10% MgO and 3%~10.5% CaO, molar ratio MgO/CaO is 0.2~1.4, Moer than ❹(SrO+BaO) /(MgO+CaO) is 0.1 to 0.5, the molar ratio of MgO/Al203 is 0.2 to 0.8', the molar ratio of Ca0/Al203 is 0.2 to 1, and the molar ratio of B203/SiO 2 is 0 to 0.2, and substantially no alkali metal is contained. Oxide, As203, Sb203, PbO and Bi203. (3) In terms of mole %, containing 60% to 73% of SiO2, 10% to 15% of Al2〇3, 0%~5% of B2〇3, 2%~10% of MgO and 3%~8 % CaO, molar ratio MgO/CaO is 0.6~1.4, molar ratio (SrO+BaO) / (MgO+CaO) is 0.15~0.45, and molar ratio Mg0/Al203 is 0.2~0.8 ' Moer ratio CaO/ Al203 is 0.2 to 0.6, and molar ratio B203/SiO2 is 0 〇 to 0.2, and substantially does not contain an alkali metal oxide, As203, Sb203, PbO, and Bi2〇3. (4) In terms of mole %, containing 60% to 73% of SiO 2 , 11% to 15% of Al 2 〇 3, 0% to 3% of B 2 〇 3, 3% to 9% of MgO and 3% to 8 The CaO' molar ratio of MgO/CaO is 0.8 to 1.4, the molar ratio (SrO+BaO) / (MgO+CaO) is 〇·ΐ5 to 0.4, and the molar ratio of Mg0/Al203 is 0.3 to 0.75 'Mo Erbi Ca0/Al203 is 0.3~0.6, and the molar ratio B203/SiO2 is 0~0.15, which does not contain alkali metal oxide, As203, Sb203, PbO 15 201247585 -TZ-r-TV/ / jJlX X is 101111412 The specification has no U-line correction. The revision period is: August 16th, 2011 and Bi2〇3. (5) In terms of mole %, containing 60% to 72% of SiO 2 , 12% to 15% of Al 2 〇 3, 0% to 3% of B 2 〇 3, 6% to 9% of MgO and 5% to 8 % CaO, molar ratio MgO/CaO is 1 to 1.4, molar ratio (SrO+BaO) / (MgO+CaO) is 0.15 to 0.3, molar ratio Mg0/Al203 is 0.5 to 0.75, and molar ratio Ca0/ Al203 is 0.4 to 0.6, and molar ratio B203/SiO2 is 0 to 0.1, and substantially does not contain an alkali metal oxide, As203, Sb203, or PbO. (6) In terms of mol%, containing 80% to 72% of SiO 2 , 12% to 15% ❹ of 8 12 〇 3, 0% to 3% of 32 〇 3, 7.5% to 9% of 1 〇 and 5% to 8% of CaO, the molar ratio of MgO/CaO is 1 to 1.4, the molar ratio (SrO+BaO) / (Mg〇+Ca〇) is 0.15 to 0.3, and the molar ratio of Mg0/Al203 is 〇·5. ~ 0.7 ' Moer ratio Ca0 / Al203 is 0.4 ~ 0_6, Mo Er ratio B203 / Si 〇 2 is 〇 ~ 0.1, substantially does not contain metal oxide, As2 〇 3, Sb2 〇 3, PbO and. In the glass substrate for a liquid crystal lens of the present invention, the thickness of the glass substrate is preferably 400 μm or less, 300 μη or less, or 200 μmη or less, and more preferably 1 μm or less. The smaller the plate thickness, the wider the viewing angle that can be stereoscopically viewed in the 3D display' and the lighter the glass substrate, so that the device can be made lighter. Further, the flexibility of the glass substrate is improved, so that the device can be easily provided with a handleability, and a liquid crystal lens can be produced in a roll-to-roll process. In the glass substrate for liquid crystal lens of the present embodiment, the lower limit of each of the length and the wide production size is preferably 500 mm or more and 7 mm or more, and more preferably 1000 mm or more. In addition, the upper limit of the length and width dimensions is 16 201247585 ~r^~TW / piiT is the 101111412 Chinese manual without a slash correction. The revised period: August 16th, the value is preferably 3000 mm or less. Especially preferred is 2500 mm or less. The larger the length and the width, the larger the 3D display can be produced. However, if the length and the width are too large, the amount of deflection becomes too large, and the glass substrate is easily broken. In the glass substrate for liquid crystal lens of the present embodiment, the surface roughness S is preferably 5 angstroms (human) or less, 3 angstroms (A) or less, 10 angstroms (A) or less, 5 angstroms (A) or less, or 3 angstroms. (A) The following 'extra is 2 angstroms (person) or less. When the surface roughness Ra is large, the quality of a film such as indium tin oxide (ITO) formed on a glass substrate is lowered, which causes a display failure of the device. Here, "surface roughness Ra" means a value measured by a method according to jiSB0601:2001. In the glass substrate for liquid crystal lens of the present embodiment, the density is preferably 2.7 g/cm 3 or less, 2.68 g/cm 3 or less, 2.66 g/cm 3 or less, 2.63 g/cm 3 or less, 2.61 g/cm 3 or less, or 2.59 g/cm 3 or less. It is 2.57 g/cm3 or less, and particularly preferably 2.55 g/cm3 or less. If the density is large, it is difficult to reduce the weight of the glass. In the glass substrate for liquid crystal lens of the present embodiment, the coefficient of thermal expansion is preferably 3 〇 x l 〇 -7 / ° C to 5 〇 x 1 (T7 / ° C, 32 > < 1 〇. 7 / 〇 〇 5 〇 X1(T7/°c, 35xl0-7/〇C^50xl0-7/〇C'37xl0-7/〇C-50xl0-7/〇C'38xl0-7/〇C~49xl〇-7/〇C, More preferably, it is 38xl〇-7rc~46xl〇-Vc. If the coefficient of thermal expansion is outside the above range, warpage is likely to occur on the glass substrate due to a difference in thermal expansion coefficient of the film such as a transparent conductive film or a pattern. In the glass substrate for liquid crystal lens of the present embodiment, the strain point is preferably 650 〇C or more and 67 (TC or more, 69 (TC or more, 70 (rc or more, 715 t or more). 17 201247585 -rx- «ν / For the 101111412 Chinese manual, no picture is dirty. This revision date: 1 8 1 August 16th, above 720°C 兀仏 is 730 C or more. If the strain point becomes higher, then When the conductive __ scale is formed on the glass substrate, the change in the glass size is also reduced. Therefore, the pattern can be accurately formed on both surfaces of the glass substrate. In the glass substrate, the liquidus temperature is preferably 1320 C or less, 1290 ° C or less, and 1250. 〇 or less, 122 (TC or less, 119 (TC or less, particularly preferably ^4) t or less. Thus, devitrification crystals are hard to be generated in the glass. By the overflow down-draw method or the like, it is easy to form a glass substrate having a thickness of 4 Å or less. As a result, the surface quality of the glass substrate can be improved, and the production cost of the glass substrate (IV) can be reduced. Indicator of Sex. The lower the liquidus temperature, the more excellent the devitrification resistance. In the glass substrate for liquid crystal lens of the present embodiment, the liquidus viscosity is preferably 1040 dPa·s or more, 1〇4.3 dPa·s or more, 1〇4_5 dPa·s or more and 1047 (1Ρ35·5 S or more, l〇5.〇dPa). · s or more, 1〇5.3dpa · s or more is preferably 105'5dPa·s or more. In this way, devitrified crystals are less likely to be formed in the glass during molding, so the thickness of the sheet can be easily formed by the overflow down-draw method or the like. As a result, the surface quality of the glass substrate for liquid crystal lenses can be improved, and the manufacturing cost of the glass substrate for liquid crystal lenses can be reduced, and the liquid phase can be reduced to the purity of the moldability, and the liquidity is higher, and the formability is higher. Excellent. In general, §, high temperature melting increases the burden on the glass melting furnace. The higher the temperature of the refractory such as alumina or cerium oxide used in the glass melting furnace, the more aggressive the molten glass is. If the amount of erosion of the refractory material increases, the life cycle of the glass melting furnace becomes shorter, so the glass base 18 201247585 I l \J t is the 101111412 Chinese manual without a slash correction. The correction date: 丨〇 1 year The manufacturing cost of the board in August 6th was high. Further, in the case of melting at a high temperature, since a constituent member having high heat resistance is required in the constituent members of the glass melting furnace, the proportion of constituent members of the glass refining furnace is increased, and as a result, the cost of refining is increased. Further, the high-temperature melting must maintain the inside of the glass melting furnace at a high temperature, so that the running cost is high as compared with the low-temperature melting: Therefore, the temperature at 10 Pa 25 dPa · s is preferably 1650 ° C or lower, 1640 ° C or lower, and 1620. (: hereinafter, 1600 ° C or lower, particularly preferably 1580 ° C or lower. If the temperature at 10 Pa 25 dPa · s becomes 0 high, the manufacturing cost of the glass substrate is high, and the bubble quality is liable to lower. In the glass substrate for liquid crystal lens, the Young's modulus is preferably 29 GPa/(g/cm3) or more, 30 GPa/(g/cm3) or more, 3〇5 GPa/(g/cm3) or more, and 31 GPa. /( g/cm3) or more, especially preferably 3! 5 Gpa/(g/cm3) or more. The higher the Young's modulus, the more difficult it is to bend the large-sized, thin-walled glass substrate due to its own weight. In the configuration of the display, a combination of an LCD, a liquid crystal lens, an OLED, and a liquid crystal lens can be considered. In this case, it is preferable to use a process in which each device is bonded to each other, so that defective products of the respective G devices can be used in advance. In addition, the manufacturing yield of the 3D display can be improved. On the other hand, since the thickness of the counter substrate of the LCD or OLED is added, the viewing angle of 3D is narrowed. In this case, it is preferable to After the lens device is patterned on the glass substrate for liquid crystal lens of the present embodiment, After the CF or the like is formed on the back surface of the glass substrate, the substrate is formed as an opposite substrate of the LCD or the OLED. If the structure is such a structure, the distance between the pixels and the lens becomes substantially the thickness of the glass substrate for the liquid crystal lens, thereby improving the 3D display. 201247585 Japanese No. 101114412 No slash correction This revision period: January, 1st, August 16th The glass substrate for liquid crystal lens of the Japanese embodiment can be produced as follows. It is formulated into a predetermined glass composition. After the glass batch is charged into the continuous glass melting furnace, the glass batch is heated and melted, and the obtained molten glass is clarified, and then supplied to a molding apparatus to be formed into a thin plate shape or the like. The glass substrate for a liquid crystal lens of the present embodiment is more It is preferably formed by an overflow down-draw method. Thus, a glass substrate which is not polished and has a good surface quality can be produced. The reason is that in the case of the overflow down-draw method, the surface of the glass substrate which should be the surface is not grooved. The refractory is in contact and is formed in a state of a free surface. The structure or material of the groove-like structure can achieve the desired enthalpy In addition, the method of applying a force to the glass when extending to the lower side is not particularly limited as long as the desired size or surface quality can be achieved. For example, the following method can be employed. In other words, a method in which a heat-resistant roll having a sufficiently large width is rotated and extended in contact with the glass, or a method in which a plurality of pairs of heat-resistant rolls are brought into contact with only the vicinity of the end surface of the glass in the visibility direction, and the liquid is extended. The lower the phase temperature or the higher the viscosity of the liquid phase, the easier it is to form a glass substrate having a thickness of 400 μm or less by the overflow down-draw method. In addition to the overflow down-draw method, other forming methods can also be used. For example, a sllow down draw method, a re-drawing method, a floating method, or the like can be employed. The glass substrate according to the embodiment of the present invention is characterized in that the thickness is m from m or less and the Young's modulus is 29 GPa/(g/cm3) or more, which is preferably used in a liquid crystal lens. The technical characteristics, preferable composition, preferable characteristics, and effects of the glass substrate of the present embodiment are the same as those of the glass substrate for a liquid crystal lens of the present embodiment, and thus 20 201247585 AW I / ▲ is omitted.丄1 is the Chinese manual of No. 101114412. There is no slash correction. The date of this revision: 1〇i, August 16th. [Example 1] Hereinafter, an example of the present invention will be described. In addition, the following examples are merely illustrative. The invention is not limited by the following examples. Tables 1 to 5 show examples of the present invention (Sample No. 1 to Sample No. 35). Ο [Table 1] No.l No.2 No.3 Νο.4 Νο.5 Νο·6 Νο.7 Glass composition (mol%) Si02 71.5 72.4 70·9 71.6 71.3 70.4 71.1 Al2〇3 10.6 10.7 10.5 10.6 10.5 10.7 10.0 B203 - - - - - 2.0 2.0 MgO - - 3.3 3.4 - - CaO 13.8 11.5 11.3 9.0 13.7 11.5 11.5 SrO - 1.3 - 1.3 1.3 1.3 1.3 BaO 4.0 4.0 3.9 4.0 3.1 4.0 4.0 Sn02 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MgO /CaO 0 0 0.30 0.38 0 0 0 (SrO+BaO ) / (MgO+CaO) 0.29 0.46 0.27 0.43 0.32 0.47 0.47 Mg0/Al203 0 0 0.32 0.32 0 0 0 CaO/Al2〇3 1.30 1.07 1.08 0.85 1.30 1.08 1.15 B2O3 /S1O2 0 0 0 0 0 0.03 0.03 p"g/cm勹2.64 2.65 2.64 2.64 2.63 2.64 2.63 ar><10_7〇Cl 45 45 44 43 46 45 45 PspCl 750 754 738 741 749 716 712 TapCl 804 809 793 798 802 772 768 TspCl 1027 1039 1020 1032 1023 1002 1000 104dPa-s[°C] 1348 1367 1340 1363 1335 1327 1329 103dPa-s[°C] 1519 1541 1508 1533 1503 1498 1503 10A5dPa-s[°C] 1628 1653 1614 1640 1610 1607 1615 TLPC1 1212 1215 1217 1221 1215 1170 1187 log10ri[dPa· s] 5.2 5.3 5.1 5.2 5.0 5.4 5.2 Young's modulus [GPa ] Not measured 82 Not measured 80 81 79 78 Specific Young's modulus [GPa/(g/cm3)] Not determined 31.0 Not determined 30.4 30.9 30.0 29.8 Rigidity rate [GPa] Not determined 34 Not measured 33 34 33 33 Surface thick chain Degree Ra [nm] Not determined Not measured Not measured Not measured Not measured 0.2 Not measured 21 201247585 ft ^ ΛΛ, -Μ. Corrected date: 1 August 1st, August 16th is No. 101114412 Chinese manual without scribe correction [ Table 2] N0.8 No.9 No. 10 No.11 No.12 No.13 No.14 Glass composition (mol%) Si02 69.8 72.0 70.6 71.0 70.9 71.4 70.5 ai2o3 11.1 10/7 10.8 10.9 10.8 10.9 11.1 B2O3 2.0 2.0 2.0 2.0 2.0 2.0 2.0 CaO 11.6 10.4 10.4 9.2 10.4 9.2 10.9 SrO 1.3 1.2 2.0 2.7 1.3 1.4 1.3 BaO 4.1 3.6 4.1 4.1 4.5 5.0 4.1 Sn02 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MgO/CaO 0 0 0 0 0 0 0 (SrO +BaO) / (MgO+CaO) 0.47 0.46 0.58 0.74 0.56 0.69 0.49 MgO/Al203 0 0 0 0 0 0 0 Ca0/Al203 1.04 0.97 0.96 0.85 0.96 0.85 0.99 B2O3/S1O2 0.03 0.03 0.03 0.03 0.03 0.03 0.03 p[g/ cmJ] 2.64 2.60 2.64 2.65 2.64 2.65 2.63 a[xl〇-7°Cl 45 43 44 44 44 44 44 PspCl 718 726 716 719 717 720 720 TapCl 774 784 773 777 775 779 ΊΊΊ TsfCl 1003 1026 1008 1016 1011 1020 1011 104dPa*s[°C] 1326 1362 1338 1347 1345 1360 1342 103dPa-s[°C] 1496 1538 1512 1522 1520 1536 1515 102-5dPa. s[t:] 1604 1648 1621 1633 1628 1648 1623 TLr°Cl 1186 1229 1170 1179 1158 1159 1190 log10ri[dPa.s] 5.2 5.1 5.5 5.5 5.6 5.8 5.3 22 201247585 Λ No. 101114412 Chinese manual without drawing line correction Amendment date: August 16, 2011 [Table 3] No.15 No. 16 Νο.17 No. 18 No. 19 No.20 No.21 Glass composition (mol%) Si02 70.2 70·6 71.0 71.1 71.2 71.0 70.6 A1203 11.1 11.5 10,8 10.9 10.8 10.8 10.8 B2O3 2.0 2.0 1.4 1.4 1.4 1.4 1.4 MgO - - - - - - 0.9 CaO 11.3 10.4 10.4 9.8 10.4 10.4 10.4 SrO 1.3 1.3 1.3 1.7 1.3 1.3 1.0 BaO 4.0 4.1 4.5 4.5 4.5 4.5 4.5 ZnO - - 0.5 0.5 - 0.3 p2〇5 - - - - 0.3 0.2 0.3 Sn02 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MR〇/CaO 0 0 0 0 0 0 0.08 (SrO+BaO ) / (MgO+CaO) 0.46 0.52 0.56 0.63 0.56 0.56 0.49 MgO/Al203 0 0 0 0 0 0 0.08 CaO/Al203 1.02 0.9 0.96 0.9 0.96 0.96 0.96 B203/Si02 0.03 0.03 0.02 0.02 0.02 0.02 0.02 pfg/cm 勹 2.63 2.63 2.66 2.66 2.65 2.65 2.64 arxlO'Vri 45 43 45 44 44 45 44 PsPCl 720 728 721 722 728 724 723 TapCl 111 785 778 780 786 782 780 TsfCl 1009 1024 1013 1017 1022 1018 1015 104dPa-s[°C] 1338 1353 1342 1350 1355 1352 1344 10JdPa-s[°C] 1509 1524 1516 1524 1529 1526 1518 102idPa-s[°C ] 1617 1632 1630 1636 1640 1636 1633 TL[°C1 1196 1215 1184 1183 1175 1177 1177 log10il[dPa .s] 5.2 5.2 5.4 5.4 5.6 5.5 5.5 Young's modulus [GPa] Not determined Not measured Not measured Not measured 79 Not measured 79 Specific Young's modulus [GPa/(g/cm3)] Not determined Not determined Not measured Measurement 29.8 Not measured 30.1 Rigidity rate [GPa] Not measured Not measured Not measured Not measured 33 Not measured 30 23 201247585 Amendment date: August 1, 2016, No. 101114412 Chinese specification No underline correction [Table 4] No.22 Νο.23 Νο.24 Νο.25 Νο.26 Νο.27 Νο.28 Glass composition (mol%) Si〇2 70·7 70.3 69.9 70.2 70.1 69.6 69.5 ai2o3 10.9 11.2 11.6 12.4 11.2 11.1 11.1 B2〇3 1.4 1.4 1.4 4.1 1.4 1.4 1.4 MgO - - - 4.1 1/7 1.7 1.7 CaO 10.4 10.5 10.5 6.0 9.2 10.4 10.3 SrO 1.4 1.4 1.4 1.3 1.3 0.7 1.3 BaO 4.6 4.6 4.6 1.9 4.5 4.5 4.1 p2〇5 0.5 0.5 0.5 - 0.5 0.5 0.5 Sn〇2 0.1 0.1 0.1 0.1 0,1 0.1 0.1 MgO/CaO 0 0 0 0.68 0.19 0.Π 0.17 (SrO+BaO ) / (MgO+CaO) 0.57 0.56 0.56 0.32 0.54 0.43 0.45 Mg0/Al203 0 0 0 0.33 0.15 0.15 0.15 Ca0/Al203 0.96 0.93 0.90 0.48 0.82 0.93 0.93 B2O3/S1O2 0.02 0.02 0.02 0.06 0.02 0.02 0.02 p[g/cmJ] 2.65 2.65 2.65 Not determined Not measured Not measured not measured a[xlO'7/〇C] 45 45 44 Not determined 43 44 44 Ps[°C] 728 731 733 Not measured 722 720 720 TapC] 786 788 790 Not determined 780 777 777 Ts[°C] 1022 1023 1024 Not determined 1017 1011 1009 104dPa-s[°C] 1352 1352 1350 Not determined 1344 1335 1330 103dPa-s[°C] 1525 1523 1519 Not determined 1516 1504 1498 102idPa-s[°C] 1637 1633 1627 Not determined 1624 1611 1605 TL[°C] 1176 1182 1190 Not determined 1179 1182 1191 log10ri[dPa-s] 5.6 5.5 5.4 Not determined 5.5 5.4 5.2 Young's modulus [GPa] Measurement 79 Not measured Not measured 79 Unmeasured unmeasured ratio Young's modulus [GPa/(g/cm3)] Not measured 29.7 Not measured Not measured Not measured Not measured Unmeasured unmeasured rigidity rate [GPa] Not measured 33 Not measured Not measured 33 Not measured and not measured 24 201247585 · " · vr tj^rxxT Correction period: August 16th, 2011 is the first instruction of the Chinese version of the 〇m4412 without scribe correction [Table 5] No.29 No.30 No.31 _No.32 No.33 No.34 Ν〇35~Ί Si02 68.7 70.0 70.5 70,4 67.2 67.3 A]2〇3 11.2 11.2 11,1 11.0 12.3 12.2 f 12?~ B2O3 1.4 1.4 1.4 1.4 2.8 2,8 2~8~~ MgO 5.4 0.9 2.6 3.4 8.2 7.9 7.9 — ~~62' ------ 0.6 CaO 8.1 10.4 8.6 8.5 6.3 6.2 — SrO 1.1 1.0 0.7 0.3 0.6 1.3 BaO 3.5 4.5 4.5 1 4.0 22~1 2.2 - 2 ft ZnO - - - 0.4 P2O5 0.5 0.5 0.5 0.5 0.3 - — Sn02 0.1 0.1 0.1 0.1 0.1 0.1 (TP'' MgO/CaO 0.66 0.08 0.30 0.40 1.31 1.28 1.28 ----- 0.23 (SiO+BaO) / (MgO+CaO) 0.34 0.49 0.46 0.36 0.19 0.24 MgO/Al2〇3 0.48 0.08 0.23 0.31 0.67 0.65 0.65 ~〇5〇—CaO/Al2〇3 0.73 0.93 0.78 0.78 0.51 0.50 _ B2O3/S1O2 0.02 Γ 0.02 0.02 0.02 0.04 0.04 〇04-p[g/cm ] Not determined Not determined Not determined Not determined 2.56 2.57 2 57 a[xlO'7°C] 41 Not determined not measured Determination 38 39 38 Psf C] 718 725 725 722 718 718 71〇TafCl 774 782 784 780 774 774 ~~~774~~; 1 nnn Ts[ Cl 1006 1016 1024 1022 998 998 998 10 dPa*s[C] 1321 1341 1358 1350 1301 1298 1303 10 dPa.s[C] 1484 1509 Γ1530 1520 1458 1454 1460 10^dPa*s[°C] TLf°Cl 1589 1190 1618 ιΐδ9 1637 1628 Ϊ555 1555 156P~ logu^dPa.s] 5.2 "5.4 11〇 / 5.5 1206 5.2 1219 4.7 1181 5.1 1182 5 1 Young's touch [GPd] not determined 80 80 80 83 83 84 than '··IE [GPa/ (g/cm3)] not determined not determined Measurement not measured 32.5 32.5 32.5 Rigidity rate [GPa] Not measured 33 33 33 34 34 34 Surface roughness Brix Ra [nm] Not measured Not measured Not measured Not measured Not measured 0.2 Not measured Sample No. 1 was prepared as follows Sample n〇.35. First, a glass batch which has been formulated into a glass composition in the table is added to a platinum bomb, melted at 1600 ° C for 24 hours, and then flowed out onto a carbon plate to form a flat plate shape. Next, for each of the obtained samples, the density p, the coefficient of thermal expansion α, the strain point Ps, the slow cooling point Ta, the softening point Ts, the temperature at i〇4dPa·s, the temperature at 103 dPa·s, and the temperature of 102 5 dPa· were evaluated. s temperature, liquid temperature anal, 25 201247585 Revision date: 1〇1月16日日第101114412号 Chinese manual no slash correction liquid phase viscosity log1()r|TL, Young's modulus, ratio Young's modulus, rigidity rate. The degree of desire P is a value measured by a well-known Archimedes method. The coefficient of thermal expansion α疋 was measured by a dilatometer and was. Average value over a temperature range of ~380 °C. The strain point Ps, the slow cooling point Ta, and the softening point Ts are values obtained based on ASTM measurement. l 〇 40dPa · s temperature, 103. 〇dPa · s temperature, 1 〇 2.5 迚 & • s temperature is measured by the platinum ball pull method. The liquidus temperature TL is obtained by adding the glass powder remaining at 50 mesh (300 (4)) through the standard _3G mesh (5 m) to the boat, and then burying the ship in a temperature gradient furnace for 24 hours to determine the temperature of the crystallization (4). The liquid phase viscosity ι〇_τχ is a value obtained by measuring the viscosity of the glass at a liquidus temperature TL by a tumbling method. Young's modulus and rigidity are well-known resonance methods. As shown in Table i to Table 5, the sample N〇1~sample Ν〇35 is composed of glass _ secret wire _, called mosquito ρ is 2 Say Μ〆] ^^a^38xl〇-7rc^46xl〇-7rC,m^fiPs^712 =12: ^ S when the temperature is below 1653ΐ, liquid temperature 丨=29C, liquid viscosity 1〇_ The hole is *7 or more, the Young's mode is two 8 GPa or more, and the Young's modulus is Μ g =. The resistance to devitrification is good, so the capacity ==〇〇μΠ1 or less, and thus the Young's modulus is larger, so Under the singularity of the board, the broken glass substrate is not easy to be released. 26 201247585 • WII ^*·*· i- Date of revision: August 16, 2011 is the 101111412 Chinese manual without a slash correction. It is considered that the sample No. 1 to the sample N 〇 35 are preferable as the glass substrate for liquid crystal lenses. Further, Sample No. 1 to Sample N 〇 35 contained SnA2 without containing AsA and SbA' in the glass composition, and therefore the bubble quality was good. [Example 2] After melting the glass batch corresponding to the sample N〇6 and the sample N〇34 in the test melting furnace, the liquid crystal having a plate width of 1500 mm and a plate thickness of 250 μm was formed by an overflow down-draw method. A glass substrate for lenses. As a result, the surface roughness Ra of the glass substrate for liquid crystal lens was 20 Å or less (see Tables 1 and 5). In addition, at the time of molding, the temperature of the stretching roller, the speed of the cooling report, the temperature distribution of the heating device, the temperature of the molten glass, the flow rate of the molten glass, the pulling speed of the plate, the number of revolutions of the agitator, and the like are adjusted. The surface quality of the glass substrate for liquid crystal lenses. [Simple description of the diagram] None. [Main component symbol description] None 0 27 201247585 Correction period: 1〇1年8月16日的第lonmi2号 Chinese manual No underline repair^#登里专利手册 (This manual format, order, please do not change, ※Please do not fill in the number of the mark. ※Application number: c〇^cV^S (2006.01) ^7(2006.01) ^/v^\ (2006.01) ^4^(2006.01) ※Application date: Classification: 1. Name of the invention ··(Chinese/English) Glass substrate for liquid crystal lens GLASS SUBSTRATE FOR LIQUID CRYSTAL LENS ° II. Abstract: The glass substrate for liquid crystal lens of the present invention contains, as a glass composition, 45% to 75% by mol% SiO 2 , 5% to 15% of Al 2 〇 3, 0% to 15% of B 2 〇 3, 〇 % to 15% of MgO, and 0% to 15% of CaO, and a plate thickness of 400 μm or less. 3. Inventive Abstract: This invention relates to a glass substrate which is for liquid crystal lens and has a glass composition (by mole%), including 45% to 75% of Si〇2, 5% to 15% of AI2O3,〇 % to 15% of B2〇3, 0% to 15% of MgO, and 0% to 15% of CaO, and has a thickness equal to or less than 400 μηι. 201247583⁄4 is the 101114412 Chinese manual without a slash correction Amendment date: August 16, 2011 VII. Patent application scope: 1. A glass substrate for liquid crystal lens, characterized in that: as a glass composition, it contains 45% to 75% of SiO 2 , 5% by mol % 〜15% Al2〇3, 〇%~15% b2〇3, 0%~15% MgO, and 0%~15% CaO, and the plate thickness is 400 μπι or less. 2. The glass substrate for liquid crystal lens according to claim 1, wherein the Young's modulus is 29 GPa/(g/cm3) or more. 3. The glass substrate for a liquid crystal lens according to the second or second aspect of the invention, wherein the strain point is 65 (TC or more. 4. The glass substrate for liquid crystal lens according to claim 1 of the invention) The temperature is 2.7 g/cm3 or less. 5. The glass substrate for liquid crystal lens according to claim 1, wherein the temperature at 1025 dPa · s is i650 ° C or less. 6. As described in claim 1 The glass substrate for a liquid crystal lens, wherein the liquid crystal viscosity is 10 〇 40 dPa · s or more. 7. The glass substrate for liquid crystal lens according to claim 1, wherein the thermal expansion coefficient at 30 ° C to 38 CTC is 3 〇. Χ1 (Γ7Α: 〜5〇xlO_7/°C. 8. The glass substrate for liquid crystal lens according to claim 1 is formed by an overflow down-draw method. 9. A glass substrate for a liquid crystal lens, characterized by In the glass composition, in terms of mole %, containing 45% to 75% of SiO 2 , 5% to 15% of Al 2 〇 3, 〇 % to 15% of B 2 〇 3, 0% to 15% of MgO, and 0%~15% CaO, molar ratio MgO/CaO is 0~1.5, Moer than 201247585 call zH〇/pifl is 101114412 Chinese manual without slash correction This revision period: (8) August "SrO+BaO" / (MgO + CaO) is 0~1, Moer than MgO/Al2〇3 is 0~1, Moer The ratio Ca0/Al2〇3 is 〇~3, and the molar ratio B2〇3/Si〇2 is 0~0.3 'substantially does not contain metal oxide, aS2〇3, milk, pb〇 and Bi2〇3' The Young's modulus is above 29 GPa/(g/cm3), and the thermal expansion coefficient at 303⁄4 to 380 °C is 3〇xl〇-7/°C~5〇xl〇_7/°c, and the density is 2.6g/cm3. Hereinafter, the liquidus viscosity is i〇5.〇dPa·s or more, the width dimension is 500 mm or more, the length dimension is 500 mm or more, and the plate thickness is 4 〇〇μιη 〇 or less. The glass substrate for liquid crystal lens is characterized. In the glass composition, in terms of mole %, containing 45% to 75% of SiO 2 , 5 〇 / 〇 ~ 15% of Al 2 〇 3, 〇 % ~ 15 〇 / 〇 B2 〇 3, 0% ~ 15% MgO, and 0%~15% CaO, molar ratio MgO/CaO is 〇~1.5, molar ratio (SrO+BaO) / (MgO+CaO) is 〇~Bu Moer than Mg〇/Al2〇3 0 to Bumor ratio Ca0/A12〇^ 〇~3, Mobi ratio B2 (Vsi〇2 is 〇~〇.3, substantially no alkali The oxides, AS2〇3, Sb2〇3, Pb〇, and Bi2〇3' have a modulus of 29 GPa/(g/cm3) or more, and have a thermal expansion coefficient of 3 at rc U 380 °C. Xl〇-7/t: ~5〇xl〇-7/t:, dense production is 2.6g/cm3 or less 'liquid viscosity is 妒(4)·s or more, and the thickness is below ^μηη. A liquid crystal lens comprising a liquid crystal transmissive glass substrate according to any one of the claims 1 to 1G. 12· A glass substrate characterized in that the above plate thickness is 400 μηι or less, and the Young's modulus is 29 Gpa/(My) 29 201247585 Η·厶Ηυ / jJliJL is the 101114412 Chinese manual without a slash correction Amendment Day—August 16th of the following year. 13. The glass substrate of claim 12, which is used in a liquid crystal lens. 30 201247585 , I X· / f A is the Chinese manual of No. 101114412 without a slash correction. Amendment date – August 16, 101. IV. Designated representative map: (1) The representative representative of the case is: None. (2) A brief description of the component symbols of this representative figure: None. 5. If there is a chemical formula in this case, please reveal the chemical formula that best shows the characteristics of the invention: No 0